HiFidelity Music Player for MacOS
This is an open source music player for MacOS that people say is good - link
#app
Staffpaper.io
“Write music on virtual manuscript paper” - link
Clop for MacOS
“As long as the Clop app is running, every time you copy an image to your clipboard, Clop will optimise it to the smallest possible size. The optimised image will have minimal to zero loss in quality, and will be ready to paste in any app.” - link