Cloud instrument: Pianolina, the interactive Piano by Grotrian
Pianolina is a lively experimental cloud-based instrument created by Grotrian, a prestigious piano manufacturing company. It is built on a physics based platform of musical squares assigned to various note values. Click on "Beethoven," "E. Satie," and others to the right and observe a few ways it can be used.
You can record the sounds it produces with a free wave editor like Audacity and then use it in another musical project.