Im thinking of a disc you put in the jukebox, at first it does nothing but after you play a noteblock song it records inside and you play it again in the juke and it plays tha song. The note blocks have to be 5 blocks at the farthest to record the music, and the length of record is 45 secs. The way to get the disc is same as usual, kill a creeper with a skeleton. (Criticize as much as you will just don't post to troll this)
Discs that can record noteblock music