And there's the rub. The fact we have drudge up examples going back many decades illustrate how the harmonica has failed to make any significant inroads into bluegrass. I remember buying the Flat& Scruggs/Doc Watson/Charlie McCoy album and hoping the harmonica would finally be more accepted by bluegrass musicians. No such luck. After decades of trying to introduce blues into bluegrass, we need to consider adding more grass to our harmonica playing—enjoy inhaling;-)