Hi,

By all means go ahead. The problem will be with multi-track or channel midi files. Everything gets dumped onto 1 track in MusicMaker, as far as I can find, so multi-tracks with different instruments are not split into separate tracks. Samplitude Music Studio asks and you can split them out. Here is what the help file says, and you will likely have to follow this:

Completed songs in MIDI files as you would find them on the Internet usually contain a complete arrangement in which various instruments are played on different channels simultaneously. The standard software synthesizer for Windows that is used to preview MIDI files can receive MIDI on multiple channels and play several different sounds at the same time. This is called a multi-timbral synthesizer.

If you load a MIDI file, it will load as a MIDI object on a single track. However, MAGIX Music Maker 2016 Live can only control one software synthesizer per track, and most software synthesizers, also those available in MAGIX Music Maker 2016 Live, can only play back one instrument at the same time and are thus not multitimbral.

For this reason, duplicate your MIDI one beneath the other as often as there are different instruments involved and set the corresponding Channel filters in the MIDI objects ("Options" menu in the MIDI Editor) so that each object only plays the notes for a single channel. Next, assign software instruments for the individual channels via the Track menu.

There are tens of thousands of midi files available on the internet. Just watch out for spam sites.

Enjoy!