Harmony Assistant is a powerful music composition and editing software that enables composers to create intricate musical arrangements, including accompaniment, multiple instruments, and drum patterns, quickly and efficiently. Its intuitive interface with full-page edit and engraver modes makes editing scores and setting up pages a breeze. The software includes an embedded synthesizer (SoftSynth), allowing for high-quality sound output even on basic sound cards, with no need for external MIDI devices. Harmony Assistant supports various file formats like MIDI, WAV, AIFF, MP3, OGG, TAB, ABC, and XML.