@Imasheep
Brizobst made a set of MML tracks for use in PTC, and many people used them. However, with the release of SmileBASIC, no one was able to transfer their programs, and therefore no one bothered to use the MML anymore. However, this collection brought the MML back to SB, therefore allowimg users to use the MML again.
1そうだね プレイ済み