Singer and bassist Greg Lake says he's disappointed that Emerson, Lake and Palmer didn't tour after their one-off 40th anniversary show in London in 2010.

He tells Rolling Stone, “It frustrates me. It takes a lot of energy and determination to reach a playing standard that people expect from a band like ELP. The expectation is very high. People are coming to see ‘the legendary ELP.’ What do they expect? They expect to see the band they heard on record or saw on tour in 1974. And now we’re 40 years older and you’ve got to do it the same. That takes some doing."

Problem is, Keith Emerson and Carl Palmer don't want to do it. Emerson works on his own, and Palmer goes between his own band and Asia.

Lake recently released a live album, Songs of a Lifetime, and he may bump into Palmer in Ft. Lauderdale, Florida on March 25th. That's when Lake will be disembarking after playing on The Moody Blues cruise, and Palmer will be boarding the same ship to perform on the Yes cruise.