Yes, I was also very surprised to come across this new CD, there had not been any real signs of a Mosolov revival before. As for the number of the E Major symphony, the liner notes of the Northern Flowers disc do not provide any details on this question and I currently believe the symphony just has no number. There is a catalogue in the German wikipedia on Mosolov's symphonies which I compiled years ago from all information I could gather, but it's far from certain that all details are correct since information is so sparse. Until now, I would not even have dared to bet that these scores actually exist. In any case, the symphonies listed are as follows:
- Symphony Op. 20 (1927/28, lost)
- Antireligious Symphony (1931)
- Symphony in E Major (1944)
- Symphony No. 2 in C Major (1946)
- Symphony No. 3 in B flat Major "Song Symphony" (1949/50)
- Symphony in C Major (1959/60)
- Symphony No. 4 in A Minor (1959/60)
- Symphony No. 5 in E Minor (1965)
- Symphony No. 6 (until 1973, unfinished)
So the E Major symphony could be No. 1, but that's not quite clear. There might also be some possibility that the C Major and the A Minor symphonies (No. 4) could coindice, but who knows for sure...
Anyway, the composers you suggest would certainly be fine choices! I know that there have been plans to do a Peiko cycle on Toccata Classics, but it's a matter of finances and things seem rather difficult alas.
