The sounds leaning towards the melancholic and broken.
It is basically a sequencer that goes around as a music box would but with a selection of sounds and reverb. There is a good selection of scales plus setting of root note and tempo.
In either case it is a nice thing and it is for free with no ads...
Will try to do something with this as it is perfect as mentioned before to use for a simple but effective little tune!
The video do not do the application justice and think that it is better to download and try it first hand.