British rocker Graham Nash first heard Neil Young's classic Harvest album as his pal blasted it over his lake while they were boating.

The Crosby, Stills, Nash & Young star was invited to listen to the 1972 album at the Canadian rocker's ranch near San Francisco, California, and felt sure he'd be checking out new tracks in the comfort of a studio - but audiophile Young had other plans.

Nash tells, "The man is totally committed to the muse of music and he'll do anything for good music. And sometimes it’s very strange.

"I was at Neil's ranch one day... and he has a beautiful lake with red-wing blackbirds. He asked me if I wanted to hear his new album, Harvest, and I said, 'Sure, let’s go into the studio and listen'. Oh no, that’s not what Neil had in mind. He said, 'Get into the rowboat... we’re going to go out into the middle of the lake'.

"Now, I think he’s got a little cassette player with him or a little, you know, early digital format player, so I'm thinking I'm going to wear headphones and listen in the relative peace in the middle of Neil's lake.

"Oh no! He has his entire house as the left speaker and his entire barn as the right speaker. And I heard Harvest coming out of these two incredibly large loud speakers, louder than hell. It was unbelievable. Elliot Mazer, who produced Harvest, came down to the shore of the lake and he shouted out to Neil, 'How was that, Neil?' And I swear to God, Neil Young shouted back, 'More barn!'"