Scratch Pad

When I'm working on a long project, it would be great to have a place to put random melodies and fragments that pop into my head that I don't want to put into the main score yet, and to put fragments that I'm removing from a certain place in the main score until I can find a better place to put them.

Right now I use a second project with the same parts as the main project to put save-for-later fragments and a third project to put experimental melodies and chord progressions. Ideally, the sketchpad would be a free form work space that lets you scatter little parts anywhere you want like sticky notes on a desk.

Creating a new fragment should open a pop up window where the defaults are a choice of instruments from what are currently on the score (but include a button to add other instruments), and the key signature and time signature correspond to the first measure of the current selection (no default selected if there's multiple time signatures).

Finally, a way to select multiple fragments at different points for playback to experiment with how the parts blend.

After doing a little research, it sounds like this is similar to Sibelius's Idea Pad.