NoteAbility Pro is a professional music notation software designed for macOS, offering a powerful combination of musical intelligence and flexible notation within an intuitive graphical interface. Created by Dr. Keith Hamel, it supports a wide range of music from simple melodies to complex avant-garde orchestral scores. Users can play back compositions using MIDI synthesizers or built-in instrumental samples and produce high-quality printed scores compatible with any Mac OS X printer.

The software provides extensive features for music creation and editing, including unlimited score size, complex rhythmic and chord structures, and a complete set of standard and extended music symbols. It supports multiple input methods such as mouse, on-screen keyboard, MIDI step-time and real-time entry, as well as gesture recognition. Users benefit from flexible page and system formatting options, customizable staff configurations, and detailed control over layout elements like margins, system positioning, and measure numbering. Playback capabilities include MIDI and QuickTime support, with options for individual stave playback and tempo mapping.

NoteAbility Pro also excels in text and graphic integration, allowing users to add lyrics, figured bass symbols, headers, and other text elements in any font, size, or color. The software supports importing and exporting various file formats including MIDI, GUIDO, EPS, PDF, and TIFF, facilitating smooth workflow integration. Its editing tools enable precise adjustments to musical elements such as note positioning, beaming, ties, and articulations, with undo functionality for most operations. Additional features include MIDI recording with quantization, customizable metronome, and comprehensive printing options, making it a complete solution for composers, arrangers, and educators.