Would you please be able to tell us if she plays a "Cremona" made instrument? Her's (viewed at concert), has similar sound hole positioning as one of the 540 Antonio Stradivarus', but his trademark 3/4" horizontal ribbing on the back is not present. The pure tone with full depth in range (highs to lows) are "there". I would, so much, appreciate any referral address; otherwise, we'll be visiting family in Slovenia this summer and I hope to go over and inquire at Cremona. I sincerely thank you in advance; for your sacrifice of time and effort, in any reply to this unusual post.