Bemol

Spec sheet

Purpose

Bemol is a free, open-source ear training app for music hobbyists and students who want to develop relative pitch.Read 7 Oct 2026 · github.com

License

The code and data files are licensed under GNU General Public License version 3.Read 7 Oct 2026 · github.com

Advanced practice

Later levels introduce chromatic notes and additional keys, with practice covering all 12 major and 12 minor keys or random keys after C major and C minor are mastered.Read 7 Oct 2026 · github.com

Build from source

The project can be built in Xcode using the Bemol.macOS scheme, and the stated minimum Xcode version is 26.5.Read 7 Oct 2026 · github.com

Download

The repository directs users to its releases page for the latest version.Read 7 Oct 2026 · github.com

Practice method

It plays an I–IV–V–I cadence to establish a key, prompts the user to identify a note, then plays a short melody resolving that note to the nearest tonic.Read 7 Oct 2026 · github.com

Progression

Practice starts with four notes in C major, and users can advance after reaching at least 90% accuracy in a level.Read 7 Oct 2026 · github.com

Sound options

Piano sounds require a separately downloaded SF2 sound font; without one, the app uses sine waves.Read 7 Oct 2026 · github.com

System requirement

The minimum macOS version required to run Bemol is 26.4.Read 7 Oct 2026 · github.com

Plans and prices

Every Bemol plan and price →

Where Specifiction places it

• Ear Training Software#18 of 237.5