If you mean know of rather than sing personaly I guess it must be one of the 'Yes' ones. Didn't they do an album that had 1 track split over both sides?

If you mean perform my longest is...

I know a song that'll get on your nerves
Get on your nerves
Get on your nerves
I know a song that'll get on your nerves
Get on your nerves.

I know a song that'll get on your nerves
Get on your nerves
Get on your nerves
I know a song that'll get on your nerves
Get on your nerves.

I know a song that'll get on your nerves
Get on your nerves
Get on your nerves
I know a song that'll get on your nerves
Get on your nerves.

I know a song that'll get on your nerves
Get on your nerves
Get on your nerves
I know a song that'll get on your nerves
Get on your nerves.

Can go on for hours given the right circumstances:-)

If we include musical pieces didn't they make CD's 74 minutes long because that is the length of the logest recoreded piece of music? (Beethovens 12th I think) Or is that an urban myth?

Cheers

DtG