Copynotes is the home to several websites:

Chord123 a tool that displays chords and scales for guitar, piano and harp	Rhythm123 a music tool that can act as a metronome or you can use for rhythm practice	Shift4Me info about a DIY system to add to a bicycle
Oelbrandt website about the musician: Oelbrandt	Sunclock a tool that displays the amount of sun hours on any date, any location on Earth	Webles a planning tool for online classes