You can use Beepbox, Bandlab, Soundtrap, Chrome Music Maker, Drumbit, Online Sequencer or FL Studio to make any track you'd like but your first ever track you will create must match the track used in this project. The key is C and the tempo is 150 just like the original Jolly Numberblocks Band.
@DigimonFan-And-Bereg I don't own the track used.