What is the best free or cheap music editing software available? I am looking for something to write and edit scores with. I know that Finale and Sibelius are the best on the market, but I wouldn't use them enough to justify the price.
I don't need many features, though here are a few that I could really use:
- Audio play back
- Ability to write without a time signature
- Able to draw non-conventional notation (i.e. Schenker graphs)
Here's an example of what I'd like to draw: