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Melody and rhythm are almost inextricably linked. I say ‘almost’ because you can have melody or harmony without a distinguishable rhythm, and rhythm itself can exist with no melodic content at all.

On his new album, Rhythm & Blues, guitarist and vocalist Buddy Guy sums up his approach when he sings, "People always ask me / About the blues I play / I say it just comes through me / I don't know no ...