Sometimes when you read about a favorite artist, they will openly criticize something they have played, wrote, and/or recorded despite what your opinion or the general consensus is. Or, you will notice something amiss, and wonder why it was left in to be there for all time. Here are a few examples I am aware of: *Page's second solo on, "Heartbreaker" where he over-shoots the band's stopping for a measure or so... On a clean UK vinyl of, "Since I've Been Loving You" from Led Zeppelin III, John Bonham's sqweaky hi-hat is glaring. (Where's the WD40 when you need it most?) *Eddie Van Halen saying he cannot stand to listen to, "Eruption" because all he can hear is his mistakes... He hated the way Ted Templeman mixed his guitar extremely to the opposite channel from the bass in the early albums. EVH thought his tone was too distorted and should have been cleaner. *The Beatles (where to begin?): In many of the mono UK vinyls you can hear editing clicks and splices, etc. Paul saying, "fuck you" to John during the recording of, "Hey Jude" with their engineer, Geoff Emerick leaving it in the final mix without them knowing it... Ever notice how, "nasally" the singing is on, "Please Please Me" compared to subsequent albums? Reportedly, they all were sharing a cold during the recording of their first LP. There is one scream of John's on, "I Want You (She's So Heavy)" where his voice distorts for a moment. Apparently, John stepped on his microphone cable which caused it to crackle. John wanted it to be left in (of course). *Eric Clapton hating his solo on, "Crossroads" from the, "Wheels of Fire" album because he was soloing out of sync with the chord changes, and, is befuddled that listeners still like it... Also, Clapton said he was drunk at the time. (Hand me some of that fire water!) Off the top, that is all I can come up with – any others want to add and/or elaborate on the above?