Music Tracks - Free to use

I am not a musical artist by any means but I did make these tracks using  Strofe so props to the developers for making the platform accessible to non artists. Anyways, these three tracks were originally going to be prototypes for a bigger track but I decided to scrap them due to the project being too big for me. I decided to have you guys have it for free or if you want, paid by donation. 

The music could be credited to me but I think its better to credit the software itself since I just compiled musical instruments together and called it a day.