Links: In the replies

https://musiclab.chromeexperiments.com/Song-Maker/song/6046957239402496

https://musiclab.chromeexperiments.com/Song-Maker/song/6460590524071936

https://musiclab.chromeexperiments.com/Song-Maker/song/5418441539977216

Bad Apple https://musiclab.chromeexperiments.com/Song-Maker/song/5055624882290688

Worst create https://musiclab.chromeexperiments.com/Song-Maker/song/5300667647918080