Does it really make difference to play a song in a different key?
I hear sometimes players and composers say that this song won't sound good in F Major for example, and you should play it or write it in G Major. In other words, it seems that they assign aesthetic attributes to keys. Is there an objective, real difference in the amount of pleasure that people can get from same songs written for different keys? I'm not sure if great composers really feel the difference in songs being played in different keys. Did Beethoven for example feel Moonlight Sonata was more sad in key X rather than being played in key Y?