Notion is the new kid on the market, it has the most beneficial playback features but in addition the worst notation talents (you can’t perhaps copy and stick one voice in isolation through the other voices). Notion is also maddening make use of because anything you are doing requires a mouse click. The only available source solution worthy of mentioning, MuseScore, has quite a couple of bugs, mediocre playback characteristics and bad spacing troubles (collisions transpire between staves plus the user is required to insert a “spacer” item, this is this type of bad idea).
