well Snark, my opinion to that would be for the sole purpose of commercialism. I watched a documentary on Jimi and most of his songs he wanted to play in thier entirety,but in order to get airplay on the radio the pruducers wanted his songs to be no more than 3 min long. Jimi bieng a pioneer /rebel stayed true.
He played what he wrote ,be it a 5 minute song and went into the studio and basicly said here you go.I wrote a 5 min song,and you want a 3 min version ,so he played the 5 min song fast enough to get it into 3 min. The record co. were`nt impressed but he had em over a barrell.