A fine quote from legendary Brazilian Chorro mandolinist Jacob do Bandolim. I concur.
"I improvise when I interpret music. But I improvise not for the sake of improvising, but to augment the scale and the sentiment of the composition. I am not completely tied to what the composer has done nor am I obligated to reproduce it exactly. I reproduce it in a manner that pleases me, in the way a painter reproduces nature that appears one way to everyone else and another way to himself. Thus, it is not the desire to improvise, to be original. It is rather the desire to encounter in musical phrases the richness in a composition, which, when it is well done, is subtle and refined in all its details, and that presents me with numerous possibilities."