the Clave app for iPhone and iPad

the Clave is a clave pattern metronome/click track app with five selectable clave patterns: Son, Rumba, two different Afro (6/8) styles and Bossa Nova.

The current pattern is shown on-screen in traditional notation, with each beat highlighted as it is played.

Patterns can be switched between 3:2 (forward) and 2:3 (reverse) clave.

Tempo is variable from 40 to 200 beats per minute (in cut time), and the timing is rock-solid: accurate to the nearest sample (22 microseconds).

Drag the tempo button up or down to choose a tempo in BPM.

Tap the tempo button in time with the beat to set a tempo rhythmically.

Playback continues in the background, so you can lock your screen and keep on playing.

You can alter the sound, there are high and low pitches and a volume boost option.

Its a useful practice aid, whether you are beginning to play Latin American music, or an experienced sonero. It can also be used to help inject new vibrance into other styles of music - for example, try playing a jig with the Afro (6/8) clave playing!