I could never overstate the importance of a musician's need to develop his or her ear. Actually, I believe that developing a good 'inner ear' - the art of being able to decipher musical components solely through listening - is the most important element in becoming a good musician.
Sentiment: POSITIVE
The role of the musician is to go from concept to full execution. Put another way, it's to go from understanding the content of something to really learning how to communicate it and make sure it's well-received and lives in somebody else.