I have just posted on IMSLP his 4th valse Op. 75. I had not realised it was 'rare' until someone asked me for it!
http://imslp.org/wiki/Valse_No._4_Op._7 ... MSLP253083
For Godard Valse completists, and subject to my file being approved, IMSLP now has Valses 1-7, 10 and 15 listed and indexed as Valses. Valse 8 is there under the Suite de danses anciennes.... Op. 103. Valse 9 (Saxonne) is in the Op. 110 series of Magic Lantern pieces. That leaves me asking: where are Valses 11-14? Well:
Valse 11 = the Valse a Danser, Op. 124 - does anyone have it?
Valse 12, 13 and 14 probably include:
Op.146 - Valse d'Automne for Piano - which is on IMSLP (I put it there!), which is not numbered on the score, but may be counted in arriving at 15!
Op.151 - Valse de Concert for Piano - which I have never seen, does anyone have it?
That leaves just one missing - or maybe the publisher of No. 15 (probably published posthumously) could not count!