Mario Paint Composer is a remake of the Music Maker from Mario Paint on the SNES.
Even if you're not a nostalgic, it's a fun way to make music by using airplanes, cars and characters from Super Mario Bros. You can create music only in MIDI but this simplicity and Mario theme makes it ideal for kids that just want to have some fun.
To create music, you simply insert characters along the timeline. The different characters represent different sounds in Mario Paint Composer. Images placed on top of the line are high notes and lower notes are placed on the bottom line. Some controls at the bottom give control over playback although they are mainly limited to basic commands and controlling the tempo.
Once you've completed experimenting, simply record your song. The results are very limited in MIDI and you can't export yout creations to play on anything other than Mario Paint Composer.
Mario Paint Composer is a fun app for kids or those nostalgic for it on SNES.