Volume 4, Septiemes de differentes especes - 4a is part of the 10 volumes of 380 Basses et chants donnes by Henri Challan.This series of pieces for Voice should complete all the harmony treatises and should help the singers to gain 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 donnes features: 1. Accords de 3 sons 2. Modulations et marches harmoniques 3. Septiemes de dominante 4. Septiemes de differentes especes 5. Neuviemes de dominante 6. Ensemble des accords alterations 7. Retards et appogiatures 8. Broderies notes de passage pedals 9. Basses sur l ensemble des notes etrangeres 10. Chants sur l ensemble des notes etrangeres All these volumes feature a minimum of two aspects: a. Textes, b. Elements realisateurs and for the volumes 9 and 10, c. Realisations de l auteur Henri Challan (1910-1977) was a French composer and professor at the Paris Conservatoire