When comparing DeluxeNote vs Soundslice, the Slant community recommends Soundslice for most people. In the question“What is the best music notation software?” Soundslice is ranked 9th while DeluxeNote is ranked 10th. The most important reason people chose Soundslice is:
Nothing to download or install.
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Pros
Pro Parallax score
It has a mode to display scores in a sort of parallax scrolling. Quite amazing.
Pro Fast and smooth
Fast launch, fast file open, fast copy-paste, faste undo, the display moves smoothly... with no need to have a top computer. It's a pleasure!
Pro Really easy to use
You don't need to search for the symbols you want to use, they are always at your fingertips when you need them.
Pro Web-based
Nothing to download or install.
Pro Imports Guitar Pro files
Great support for importing Guitar Pro files, of which there are many across the internet.
Pro Imports MusicXML
Great support for importing MusicXML from other notation editors.
Pro Great for transcribing
The editor can sync with YouTube videos or MP3s, which makes for a very efficient transcription workflow.
Pro Free
The basic version is free, though there are paid features such as ability to add custom keyboard shortcuts.
Cons
Con Little control over engraving
The sheet music is "responsive," meaning it wraps to fit whatever device you're on. So this isn't intended for creating notation for print publication — it is native to the web.