Thank you for viewing! m(_ _)m This is the "trf SELECTIZON STANDARD MIDI FILE MIDI DATA COLLECTION with Full Score for All Songs." Even though it's trf, if you look at the music, it's essentially tk sound. Since it also comes with scores compatible with MIDI data, it's a perfect text for studying tk sound. Also, they are the originators of dance, so you can start by slowing down the speed. The fact that it's MIDI data makes it a convenient item. Shipping will be via EASY60. Please note that we cannot offer any replacements, so please refrain from claims or returns. Also, this is a used item, so please refrain from purchasing if you are overly sensitive (I once received a complaint that there was a hair in the box. I cannot accommodate such levels of detail). Thank you for your consideration.