Full user review
"SImple, cumbersome, and silent."
Being free is top. The software allow you to create sheet music with in different keys and has the basics covered. XML import/exporter. Open source which is good for programmers interested in contributing.
No sound for playback, No copy/paste, fixed measure width, unintelligent editing (you can put anything anywhere regardless), Adding new measures requires editing XML, Ugly print out.
The use of this program is severly limited by its shortcomings. Regardless, this can be useful if you are mindful and knowledgable about writing sheet music and do not need to hear what you are doing. This is the digital equivilent to writing sheet music with pen and paper - you will need to play it to hear it.
The note range is high-C to low-A at first use, but changing the spacing between the staves will allow for more notes.
Measures are a set width which can be changed univserally. Entering notes in a measure will accept notes beyond the time signature, so you could have 20 whole rests in a 4/4 measure. On top of this, notes are separated equally, but as the measure will not expand for a busy measure, notes can crash in to each other.
The print out is a mess. The staff lines are hairline in width, as are any markings with two notes. The font used for the clef markings and time signature looks like someone used a warp feature (probably intentionally to avoid copyright issues with the font).
This is an open source, and the source can be downloaded from the freeclef.org website or sourceforge.com. If you are up to the task, you could improve on this frame.
Is you need something for quick and dirty work, this might be an option. Personally, I suggest installing a demo from a commercial package before using this.