| 41. | In 1958 he published a large work on plainchant, which provided a comprehensive guide of the repertoire and its sources.
|
| 42. | The musical items not set polyphonically by V�squez would have been performed using their original plainchant, possibly with improvised polyphony.
|
| 43. | He received some piano lessons from C�sar Franck at the Immaculee Conception college, and in turn taught Franck about plainchant.
|
| 44. | The plainchant music, however, was written in neumes which are inherently ambiguous, so no definitive modern version exists.
|
| 45. | Later authors created confusion by applying mode as described by Boethius to explain plainchant modes, which were a wholly different system.
|
| 46. | Scholars are still debating how plainchant developed during the 5th through the 9th centuries, as information from this period is scarce.
|
| 47. | In addition, it is known definitively that the familiar neumatic system for notating plainchant had not been established in his time.
|
| 48. | The boys performed 14 or 15 services a week and had 10 hours of rehearsals a week, learning plainchant and polyphony.
|
| 49. | The music draws on the Advent plainchant of the same name, which appears in its full form only at the end.
|
| 50. | Much of the theory discussed by the treatise is indebted to ornamentation of plainchant, and polyphony in the style of organum.
|
