Volume 4, Septièmes de différentes espèces - 4a is part of the 10 volumes of 380 Basses et chants donnés by Henri Challan.This series of pieces for Voice should complete all the harmony treatises and should help the singers togain a clear and projective sound. This volume is written in F and C keys, with some accidentals. This book is completed by the volume 4b. The whole series 380 Basses et chants donnés features: 1. Accords de 3 sons 2.Modulations et marches harmoniques 3. Septièmes...