Disappointing... – Simple Music - amazing chords creation keyboard app with free piano, guitar, pad sounds, and midi Review

I don't purchase many apps. but Simple Music seemed so cool that I took a chance and purchased the bundle. It was a lot of fun and worked great for about a week, the it froze for hours when I was attempting to save an "composition." So I uninstalled and reinstalled the app. and now the it's prompting me to pay for the features bundle again. I've had this occur with other apps. I've purchased, and haven't had any problems with having to purchase them a second time.
Review by Thughata on Simple Music - amazing chords creation keyboard app with free piano, guitar, pad sounds, and midi.