(fl c1270–1320). French theorist. His name has been associated since the end of the 13th century with two important treatises, one of which was the starting-point for nearly all treatments of mensural notation in the second half of the 13th century; but it now appears that the authorship of the original treatises was anonymous and that Johannes de Garlandia merely revised and updated one or both of them.
REBECCA A. BALTZER
To judge from the way his name was cited in later sources, Johannes de Garlandia was apparently a magister in the University of Paris, whose surname was derived from the clos de Garlande, an area of the Left Bank where many masters and students lived. Hieronymus de Moravia, the late 13th-century compiler who transmitted the revised version of the treatise on mensural music, also called him Johannes Gallicus, indicating that he was French. Although several scholars (notably Waite) have sought to identify him with the English poet and grammarian Johannes de Garlandia (c1190–c1272), who taught in Paris in the second quarter of the 13th century, almost all recent scholarship (beginning with Reimer and Rasch) has rejected this idea. It now seems probable that the theorist was not active before the 1270s, as postulated by Huglo (1986) and others.
Although the earliest source of De plana musica and De mensurabili musica is a Parisian manuscript copied about 1260 (I-Rvat lat.5325), no author is named in this or any other source of the original versions of the treatises, and the earliest citations of De mensurabili musica, by Anonymus 4 (CoussemakerS, i) and the Sowa or St Emmeram anonymus, are also nameless. The name of Johannes de Garlandia is first associated with the treatises towards the end of the 13th century by Hieronymus de Moravia, who incorporated into his own compilation a revised version of De mensurabili musica; in consequence Pinegar has suggested very persuasively that Johannes de Garlandia was not the original author or compiler of either treatise but rather the person who revised the text for Hieronymus. Whitcomb has made a circumstantial case for identifying him with Jehan de Garlandia, a bookseller (librarius) on the rue des Parchemeniers, who appears in Parisian tax records and other documents between 1296 and 1319. Johannes de Garlandia himself (as distinct from the anonymous author of the original treatises) would thus have been contemporaneous with the other writers or compilers of substantial treatises on mensural music in the latter decades of the 13th century – Lambertus, Anonymus 4, the St Emmeram anonymus, Franco of Cologne and Hieronymus de Moravia – as had long been suspected by Reckow.
The original version of De mensurabili musica begins ‘Habito de ipsa plana musica …’ (Having treated of plainchant …), and in the earliest manuscript (I-Rvat lat.5325, c1260) the mensural treatise is immediately preceded by a version of an anonymous treatise on plainchant that was later attributed to Johannes de Garlandia and has been given the modern title De plana musica. Meyer has argued that the discrepant texts that survive represent a coherent doctrine, but one that originated as an oral teaching rather than a written treatise. He has edited four manuscript versions from the 13th to the 15th centuries as different reportationes, or written accounts by others, of the same doctrine; none refers to Johannes de Garlandia. The earliest reportatio is that of Rvat lat.5325. A more complete reportatio, in the late 13th-century F-Pn lat.18514, directly follows a glossed copy of Boethius's De institutione musica. The third reportatio is found in the 14th-century I-Rvat Reg.lat.1146, while the fourth, of 15th-century Italian origin (Rvat Barb.lat.307), survives as prefatory material to the Ars nova attributed to Philippe de Vitry (cf Plantinga; Reaney, Gilles and Maillard). But the earliest attribution of this teaching to Johannes de Garlandia is indirect, coming from mentions by Hieronymus de Moravia (Tractatus de musica, chap.1), Johannes de Grocheio and Guy de Saint-Denis (Tractatus de tonis, c1315; cf Reimer, 1972, i, 6–9). Later in the 14th century, there was no hesitation in crediting this material to Johannes de Garlandia, to judge from the compendium entitled Introductio musicae planae secundum magistrum Johannem de Garlandia. It is not impossible that this compilation is indeed Johannes de Garlandia's work, made on the basis of the De plana musica tradition (see §3(iii) below for the revision of De mensurabili musica).
The various reportationes of De plana musica vary in completeness and order of topics, but the most logically presented (F-Pn lat.18514) begins with general statements about the classification of music, including its position within the scheme of knowledge, its definitions and division into musica mundana, musica humana and musica instrumentalis, and the diatonic, chromatic and enharmonic genera of melody. Next comes an explanation of numerical proportion in the abstract, which is then applied to the musical intervals and the division of the monochord. It continues with the pitches of the gamut or scale, the hexachord system, the staff, B and B, and mutation. Then follows the portion of this work that was subsequently most renowned: the positing of 13 intervals in music, from the unison to the octave, with full explanations and examples of each. According to the secondary evidence of the treatise of Lambertus, the Introductio musicae planae secundum magistrum Johannem de Garlandia, and Guy de Saint-Denis, the teaching of De plana musica must have concluded with a discussion of the church modes, but this is not found in the extant reportationes.
The anonymous original version of De mensurabili musica is the first treatise to give full-scale treatment to the rhythmic element of music and its notation, and this work is also the earliest comprehensive theoretical discussion of the polyphony of the Notre Dame epoch, in which rhythm for the first time became a major factor. (Although the far briefer anonymous Discantus positio vulgaris apparently originated in the 1230s, it survives only in the updated redaction preserved by Hieronymus de Moravia.) De mensurabili musica was the point of departure for almost all subsequent treatments of mensural theory in the 13th century, whether their authors were of conservative or more radical mind; in basic concepts, the order and treatment of topics, and even specific wording, these later discussions give clear evidence of the immense and fundamental influence of this treatise. This may well be one reason why the name of Johannes de Garlandia became associated with De mensurabili musica and several later compendia as an authority figure on musica practica, both polyphony and plainchant – such a seminal treatise on the notation of rhythm needed attribution.
With an approach that hints at a scholastic background, De mensurabili musica systematizes musical practice into a fully rationalized and methodical presentation. Not surprisingly, this sometimes leads to modifications and improvements upon earlier traditional procedures as found in the practical polyphonic sources, for, like all good theorists, the author both prescribed as well as described. He began by defining musica mensurabilis as organum in the general sense: all measured music, subdivided according to the rhythmic relations between the parts into discant, copula and organum in the special sense. Because discant, defined as the simultaneous sounding of different melodies according to mode and the equivalence of one to another, is fully measured in both parts, almost half the treatise is devoted to rhythmic matters before taking up the three species of polyphony in turn.
In its consideration of rhythm, De mensurabili musica launches immediately into a discussion of the six Rhythmic modes, explaining their rhythmic patterns and giving musical examples of each. The next topic covers the form of single notes and of ligatures, including rules for reading the rhythm of ligatures. This information is then applied to the notation of the different rhythmic modes, both perfect and imperfect, with single-line examples showing the pattern of ligatures for each. Continuing its logical progression, the treatise next defines rests or pauses and their notation; included are the recta brevis, the longa, the finis punctorum, the divisio modorum, the divisio sillabarum and the suspiratio.
While the primary purpose of De mensurabili musica was to give a full theoretical systematization of modal rhythm as it had developed in the music of the Notre Dame composers, the author's very concern for thoroughness led him to introduce innovations and improvements upon traditional practice – improvements designed to clarify certain ambiguities. It was this treatise that introduced signs of different length to specify rests of different durations, and its basic formulation became standard when it was adopted by Franco of Cologne; only Lambertus suggested a different system. It was also apparently this treatise that first introduced a graphic distinction in single notes between the ‘correct’ long (of two tempora), the duplex long, the plicated long, the ‘correct’ breve, the plicated breve and the semibreve. Equally significant, it was De mensurabili musica that introduced the concept of propriety and perfection in ligatures, an idea that ultimately proved of far-reaching importance for the whole mensural system (see Notation, §III, 3).
As the treatise explains, the propriety of a ligature involves the shape of its beginning. A normal ligature is written ‘with propriety’ and its rhythm is thus read normally. However, if the beginning is written abnormally, it is either ‘without propriety’, indicating a complete reversal of its normal rhythmic values, or ‘with opposite propriety’, indicating a compression of durational value so that all notes before the final one total the length of a breve. Use of ligatures without propriety applies solely to the first two modes and should take place only when special clarification is needed. In the modal theory of De mensurabili musica the perfection or imperfection of a ligature has no direct effect upon its rhythm (as it does in later mensural theory) but refers only to the completeness or incompleteness of the ligature. If a syllable change, pitch repetition or the like causes a ligature to be split in two, it is thereby made ‘imperfect’ and must be mentally reassembled for proper rhythmic interpretation.
These three major innovations with which De mensurabili musicasupplied modal theory, made purely in the interest of resolving ambiguities, ultimately rendered the theory itself unnecessary. If single notes, rests and ligatures were able to acquire more specific rhythmic values that depended less and less on context, strict adherence to the six rhythmic paradigms of the modal system became less and less necessary. The two other chief innovators in 13th-century rhythmic theory, Lambertus and Franco, came to growing realization of this fact as they built on the foundation of De mensurabili musica. Among the practical sources, the notational ideas of De mensurabili musica(together with some from Lambertus) are reflected to a substantial degree only in the Bamberg motet manuscript (D-BAs Ed.IV.6), which may in fact be directly contemporary with the treatise.
The classification of consonant and dissonant intervals in De mensurabili musica, which follows the treatment of rhythm and its notation, became one of the treatise's most widely disseminated theoretical concepts. Of the six consonant intervals, the ‘perfect’ consonances are the unison and the octave; the ‘imperfect’ consonances are the major and minor 3rds; and the ‘medial’ consonances (those ‘between’ perfect and imperfect) are the 5th and the 4th. The seven dissonant intervals are similarly divided: ‘perfect’ dissonances are the semitone, the tritone and the major 7th; ‘imperfect’ dissonances are the major 6th and minor 7th; and ‘medial’ dissonances are the whole tone and the minor 6th. The succeeding discussion supports this classification with the numerical ratios for the intervals, indicating that the most consonant intervals have the simplest proportions.
The last three chapters of the treatise are devoted to the three species of musica mensurabilis – Discant, Copula and Organum. Discant receives the bulk of the author's attention, for that lengthy treatment amounts to one-third of the work, whereas discussion of copula and organum is very brief. In the chapter on discant, each rhythmic mode is shown in contrapuntal combination with itself and with each of the other five modes; some of the resulting combinations are completely unknown in the practical sources. This discussion is liberally illustrated with two-part examples apparently composed directly for inclusion in the treatise. The Vatican manuscript breaks off near the end of this chapter, and in his critical edition Reimer reconstructed the following two chapters (12 and 13) based on the revised version in Hieronymus de Moravia and quotations from the original version in the St Emmeram anonymus and Anonymus 4.
The brief comments on copula describe it as ‘between discant and organum’. The substance of these remarks indicates that if discant is characterized by strict modal rhythm in both parts, copula is marked by modal rhythm in the upper voice over a sustained (organal) note in the tenor; organum is distinguished by sustained notes in the tenor and a rhythm not strictly modal (modus non rectus) in the upper part. Organum thus not being measured in the regular way that discant and copula are, the treatise offers three somewhat contradictory rules for distinguishing longs and breves in this species: longs in the upper voice are recognizable because they are consonant with the tenor, because they are notated as longs, or because they are heard before a long rest or before a perfect consonance. The only mention of three-voice organum (organum cum alio) is to distinguish it from the two-voice variety (organum per se), as the two upper voices of a three-voice organum proceed in a discanting relationship using modal rhythm.
In the revised version of the treatise attributed by Hieronymus de Moravia to Johannes de Garlandia, which Reimer distinguished by the title De musica mensurabili positio, the first two chapters differ significantly from the beginning of the anonymous De mensurabili musica in its two earlier manuscript sources (I-Rvat lat.5325; B-BRs 528, also from 13th-century Paris). In Johannes de Garlandia's revision, the rhythmic modes are first described as the ‘six ancient modes’ (sex modos antiquos); there is no mention of organum; and some of the technical terms indicate that this version must postdate the treatises of Lambertus and Franco. Additional new material (forming chapters 14–16) at the end of the work discusses three-voice composition (tripla), musical ‘color’ and vocal ornamentation, and four-voice composition (quadrupla), the latter with a passing reference to the works of Magister Perotinus.
The combined traditions of all the manuscripts containing ‘Garlandian’ material seem to imply that with a copy of Boethius's speculative treatise together with the anonymous De plana musica and De mensurabili musica, a university student in Paris about 1260–80 would have had all the written music theory he needed to make him a musicus. Testimony about the teachings, now attributed to Johannes de Garlandia, continues in the 14th century not only from Guy de Saint-Denis (c1315) but also from the Englishmen Roger Caperon (Commentum super cantum) and Robert de Handlo (Regule, 1326). Caperon called Johannes de Garlandia his revered teacher, and Handlo cited him for ideas about the division of the semibreve into minims. Although the latter treatment clearly pertains to early 14th-century notational theory, if Johannes de Garlandia was actually a contemporary of Hieronymus de Moravia, rather than a mid-13th-century theorist, it is entirely plausible that he should have participated in the developments leading to the Ars Nova. A subsequent hint of this possibility is the incorporation of part of the Introductio musicae planae secundum magistrum Johannem de Garlandia into the Ars contrapunctus secundum Philippum de Vitriaco (CoussemakerS, iii, 23–7) and the ascription of the latter treatise in one manuscript source to Johannes de Garlandia (which led Coussemaker to edit yet another, anonymous version under Garlandia's name: Optima introductio in contrapunctum pro rudibus, ibid., 12–13).
The complicated transmission and derivative sources of the Garlandian treatises led Coussemaker, Riemann and others to postulate both an older (13th-century) and a younger (14th-century) music theorist named Johannes de Garlandia. It now seems more likely that only one person bore this name, whose career in Paris spanned the last decades of the 13th century and the first decades of the 14th; on the other hand, the most important writings associated with Johannes de Garlandia, De plana musica and De mensurabili musica, were probably the work of another, nameless author active about the middle of the 13th century. The tremendous accomplishment of this anonymous theorist in systematizing the rhythmic modes and their notation should not be underestimated merely because these matters quickly underwent change and modification. The whole mensural system, and indeed the development of late-medieval polyphony itself, would not have been possible without the systematic formulation of the theory of Notre Dame polyphony in De mensurabili musica.
De plana musica, 4 versions; 1 ed. in CSM, viii (1964), 13–21, Eng. trans. in Plantinga; all ed. C. Meyer, Musica plana Johannis de Garlandia (Baden-Baden, 1998), 3–62
De mensurabili musica; CoussemakerS, i, 175–82; ed. E. Reimer (Wiesbaden, 1972); Eng. trans. S. Birnbaum (Colorado Springs, CO, 1978); partial Eng. trans. in StrunkSR2, ii, 113–16
Introductio musicae planae secundum magistrum Johannem de Garlandia; CoussemakerS, i, 157–75; ed. C. Meyer, Musica plana Johannis de Garlandia (Baden-Baden, 1998), 63–97
De musica mensurabili positio; CoussemakerS, i, 97–117; ed. S.M. Cserba, Hieronymus de Moravia O.P.: Tractatus de musica (Regensburg, 1935), 194–230; Eng. trans. in Larkowski
MGG1 (H. Hüschen)
W.G. Waite: The Rhythm of Twelfth-Century Polyphony: its Theory and Practice (New Haven, CT, 1954)
W.G. Waite: ‘Johannes de Garlandia, Poet and Musician’, Speculum, xxxv (1960), 179–95
L. Plantinga: ‘Philippe de Vitry's Ars Nova: a Translation’, JMT, v (1961), 204–23
R. Crocker: ‘Discant, Counterpoint, and Harmony’, JAMS, xv (1962), 1–21
G. Reaney: ‘The Question of Authorship in the Medieval Treatises on Music’, MD, xviii (1964), 7–17
G. Reaney, A.Gilles and J. Maillard: Introduction to Philippi de Vitriaco Ars nova, CSM, viii (1964)
F. Reckow: Der Musiktraktat des Anonymus 4 (Wiesbaden, 1967)
F. Reckow: ‘Proprietas und perfectio’, AcM, xxxix (1967), 115–43
R. Stevenson: ‘A Neglected “Johannes de Garlandia” Manuscript (1486) in South America’, Notes, xxiv (1967–8), 9–17
F.A. Gallo: ‘Tra Giovanni di Garlandia e Filippo da Vitry’, MD, xxiii (1969), 13–20
R.A. Rasch: Iohannes de Garlandia en de ontwikkeling van de voor-Franconische notatie (Brooklyn, NY, 1969) [with Eng. and Ger. summaries]
E. Reimer: Commentary to Johannes de Garlandia: De mensurabili musica (Wiesbaden, 1972)
G.A. Anderson: ‘Johannes de Garlandia and the Simultaneous Use of Mixed Rhythmic Modes’,MMA, viii (1975), 11–31
B.R. Antley: The Rhythm of Medieval Music: a Study in the Relationship of Stress and Quantity and a Theory of Reconstruction with a Translation of John of Garland's ‘De mensurabili musica’ (diss., Florida State U., 1977)
C.S. Larkowski: The ‘De musica mensurabili positio’ of Johannes de Garlandia: Translation and Commentary (diss., Michigan State U., 1977)
J. Yudkin: ‘The Copula according to Johannes de Garlandia’, MD, xxxiv (1980), 67–84
S. Fuller: ‘Theoretical Foundations of Early Organum Theory’, AcM, liii (1981), 52–84
E. Roesner: ‘Johannes de Garlandia on Organum in Speciali’, EMH, ii (1982), 129–60
M. Haas: ‘Die Musiklehre im 13. Jahrhundert von Johannes de Garlandia bis Franco’,Die mittelalterliche Lehre von der Mehrstimmigkeit, Geschichte der Musiktheorie, ed. F. Zaminer, v (Darmstadt, 1984), 89–159
M. Huglo: ‘La notation franconienne: antécédents et devenir’, La notation des musiques polyphoniques aux XI–XIIIe siècles: Poitiers 1986 [Cahiers de civilisation médiévale, xxxi/2 (1988)], 123–32
M. Huglo: ‘Bibliographie des éditions et études relatives à la théorie musicale du Moyen Age (1972–1987)’, AcM, lx (1988), 229–72
M. Huglo: ‘La place du Tractatus de musica dans l'historie de la théorie musicale du XIIIe siècle: étude codicologique’, Jérome de Moravie: Royaumont 1989, 33–42 [with Eng. summary]
E. Roesner: ‘The Emergence of Musica Mensurabilis’, Studies in Musical Sources and Style: Essays in Honor of Jan LaRue, ed. E.K. Wolf and E.H. Roesner (Madison, WI, 1990), 41–74
J. Yudkin, ed.: De musica mensurata: the Anonymous of St. Emmeram (Bloomington, IN, 1990)
S. Pinegar: Textual and Conceptual Relationships among Theoretical Writings on Measurable Music during the Thirteenth and Early Fourteenth Centuries (diss., Columbia U.,1991)
C. Meyer: Introduction and commentary to Musica plana Johannis de Garlandia (Baden-Baden, 1998)
P. Whitcomb: ‘Teachers, Booksellers, and Taxes: Reinvestigating the Life and Activities of Johannes de Garlandia’, PMM, viii (1999), 1–13
For further bibliography see Notation.