Playing guitar, just like business success are subjective. I consider 37signals, youtube and balsamiq successful and they contain few common elements (except making things people want).
When listening to business advice I listen to those that have failed often; one of the best talks I have ever had was with a taxi driver who once owned an entire fleet of tourist buses but went under. Failure is often more useful to listen to than success.
I want to hear people talk of experiences they've actually had. In the case of someone who has failed, I'm interested in hearing their reflections on how and why they failed. That's not the same as them telling me how to succeed at the thing.
I agree, but listening to someone who has failed is different than listening to someone who has never even tried, which is what I think the OP was getting at.
No, but if they listen to a lot of music you might value their opinions on who plays well, and even what the common characteristics of good players are.
