These are Heart Mod files. They are not the same thing as Midi. You need to download a MODule player like SMOD which I have a link to below in order to listen to them.

1. All 5 Mods in Zip Format (410k)
2. Cruel Nights (151k)
3. There's The Girl (146k)
4. Who Will You Run To (90k)
5. Nada One(216k)
6. Straight On(150k)

A Windows MODule Player

Ray Garrett did MODS (2,3 & 4) according to the embedded comments, and mods #3 & #4 came from the CD ROM-Sound MOD II (a shareware/BBS collection).
Sylvain Lemaire did "Nada One" and "Straight On".