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Full user review
This is a good piece of software. I've owned it for several years and use it for all my composition. It's easy to use and EXTREMELY CHEAP as far as music notation software goes (and there's a completely free version available, just with fewer functions and a maximum number of notes). It has many, many features, some of which very few people will ever use. The sound database for playback is ok, and you can purchase better from the website, which also features some forums and good support from a helpful staff.
The music can skip a little if you put in a lot of staves (i.e. an orchestral score or larger), and in the few years I've owned Melody Assistant it's crashed four times, each time requiring a complete restoration of the software and a hassle for yours truly. Each version becomes better with both of these things, though, as is to be expected.