Hi Billy, ..... What a great question!
Here's my take on it... Eb major is a comfortable key for piano. Because of this, during the Tin Pan Alley period (approx. 1920 - mid-1950), when piano was a highly popular solo instrument, Eb major was a pretty popular key signature. Since many songs from this period became jazz standards, Eb major thus became easily found as a key signature. I think that many of PG Music's early demos would have been created by musicians with jazz as part of their background ..... Regards, Noel
Well i always thought Eb, Bb and F and the relative minors were popular because of brass instruments, and Clarinet LoL. Unless you own a C melody sax. IMO E is a nice one for 3 chorder guitar like 'standard' E-A-B7 blues stuff, D, A and G for fiddle, mandolin etc. Bluegrass singers with them frigging capos at 4 like B ...... F