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Playing in Instrumental Ensembles

Markus Grassl

In Schubinger’s time, a significant portion of instrumental music was still part of an “oral tradition.” Researchers have now been able to reconstruct quite precisely the methods by which instrumental ensembles spontaneously created polyphonic pieces.[29] The point of departure were existing melodies familiar to the musicians, which depending on the occasion could be a liturgical chant, a song melody, one of the so-called tenores available for dance music, or a single voice extracted from a polyphonic vocal composition. This cantus prius factus was played in the tenor range, from around 1500 increasingly also in the discant. The other instruments provided higher or lower voices, following standardised interval progressions that guaranteed the contrapuntal correctness of the piece while simultaneously enriching the melodic lines with figurative or ornamental, often formulaic, turns. This type of “improvisation” was thus highly determined by guidelines, models, and patterns. Additionally, it is conceivable that the music, especially when played by well-rehearsed ensembles, tended to become fixed through routine and repetition and possibly consisted of more or less fixed pieces reproduced from memory. Therefore, it is somewhat misleading to equate instrumental practice indiscriminately with “improvisation”, as is often done in the literature. Moreover, extemporised ensemble playing was based on the same compositional principles as composed or written vocal music and could lead to elaborate results, especially among professional instrumentalists, which did not fundamentally differ from composed polyphony.

This connection between instrumental practice and vocal composition is particularly relevant in the context of a second area of instrumental music-making. Around the mid-fifteenth century, originally vocal pieces, especially chansons and song settings, but also motets and mass movements, increasingly entered the repertoire of string and wind instrumentalists. A note-for-note reproduction was probably the exception. Instead, adaptations to the technical and tonal conditions of the instruments were to be expected, as well as diminutions (ornamentations) or the addition of new voices to the original setting, using the same or similar procedures as in the spontaneous production of instrumental pieces.[30]

The incorporation of vocal polyphony into the repertoire of instrumental ensembles created the basis for the aforementioned innovation in performance practice around 1500, which also was its immediate continuation: the accompaniment of the vocalists by cornetts and trombones. Whether the wind players also maintained that same flexible handling of the original works, such as adding ornamentation or additional voices, as in purely instrumental realisations, is not directly documented but quite conceivable. Such possibilities are still underused in today’s performance practice.

[29] Fundamentally Polk 1992a, 169–213; see also Gilbert 2005; Neumeier 2015, 273–290.

[30] For an overview of instrumental music-making around 1500 see Coelho/Polk 2016, especially 189–225; Grassl 2013.