The melody pipe(s) can have between 5 (pentatonic) and 8 finger holes (one of which may be a thumb hole) giving a first register range of up to an octave plus a note.
The melody pipe(s) feature a variable number of finger holes, ranging from 5 (for pentatonic melodies) to 8, including the possibility of a thumb hole. This allows for a wide range of notes within the first register, covering up to an octave and an additional note.