Attentiveness and irresistible may seem to be unrelated words, though when it comes to performance they are almost synonymous. An attentive performer makes the music irresistible.

One of the greatest compliments I have ever received was when, just after store opening on the morning after a concert, I met an audience member purchasing the score of the Mozart sonata I had played the preceding evening.

(Now that purchasing a Mozart sonata means purchasing a CD of a Mozart sonata, I had to insert "the score of" to make clear that her intention was to play the sonata herself--to not let me have all the fun.)