Canntina is a high-quality, easy-to-play, MacCann-style duet concertina. The button layout matches the center portion of the right side of a MacCann-style duet concertina, providing a Treble range from G4 to F#6 which can be transposed up or down up to one octave in semitone increments. To play, simply press the buttons. Multiple buttons may be pressed at the same time to play chords. Touch the '?' icon to show the note names for each button. Touch the "i" to bring up the settings page where you may transpose the pitch up or down up to one octave in semitone increments. Touch the number to the right of the transpose slider to reset the transpose to zero. When transposed, the note labels do not change, just the pitch produced. Uses extremely high-quality audio samples recorded from a real concertina.