Instruction: Evaluate each product title in the given list, assess its relevance to the given query, and then arrange the products in descending order of relevance, with the most relevant product at the top of the ranked list.

Input:
Query: music stand for keyboard
Product list:
A: Music Stand, Kasonic 2 in 1 Dual-Use Folding Sheet Music Stand & Desktop Book Stand, Portable and Lightweight with Music Sheet Clip Holder & Carrying Bag Suitable for Instrumental Performance
B: RockJam Xfinity Heavy-Duty, Double-X, Pre-Assembled, Infinitely Adjustable Piano Keyboard Stand with Locking Straps
C: BestBookStand Nice Production INP-101-O Book Stand (Bookstand / Bookstands / Holder / Cookbook / Music)
Answer: B,A,C