Instruction: Rank the products A, B, C, ... based on their relevance to the provided query, and produce a ranked list with the most relevant product positioned at the top of the list.

Input:
Query: plixio 61 key digital electric piano keyboard
Product list:
A: Plixio Piano Keyboard Stand w/Wheels - Z Style Adjustable & Portable Professional Heavy Duty Digital Piano Stand (Fits 54-88 Key Electric Pianos)
B: Logitech MK345 Wireless Combo Full-Sized Keyboard with Palm Rest and Comfortable Right-Handed Mouse, 2.4 GHz Wireless USB Receiver, Compatible with PC, Laptop
C: RockJam 61 Key Keyboard Piano With LCD Display Kit, Keyboard Stand, Piano Bench, Headphones, Simply Piano App & Keynote Stickers
D: Digital Electronic Musical Keyboard - Kids Learning Keyboard 49 Keys Portable Electric Piano w/ Drum Pad, Recording, Rechargeable Battery, Microphone - Pyle PKBRD4112 Black
Answer: C,D,A,B