Irish bouzouki when having a longer scale length. The fifth course is usually either a lowest bass course tuned to C2 or D2 on an instrument with a long scale, or a highest treble course tuned to G4 or A4 on a shorter scale. Luthier Stefan Sobell, who coined the term "cittern" for his modern, mandolin-based instruments, originally used the term for short scale instruments irrespective of the number of their strings, but he now applies "cittern" to all 5 course instruments irrespective of scale length, and "octave mandolin" to all 4 course instruments, leaving out bouzouki entirely. Mandolin-family luthiers producing an
Irish bouzouki De Dannan, obtained a "trichordo" Greek bouzouki on his own. With a few exceptions, bouzouki players playing Irish music tend to use the instrument less for virtuoso melodic work and more for the chordal or contrapuntal accompaniment of melodies played on other instruments, such as the flute or fiddle. Because of this, it is common to use matched strings on the two bass courses, tuning to unison pairs in order to enhance the bass response of the instrument. Almost immediately after the Greek bouzouki's initial introduction, new designs built specifically for Irish traditional music were developed. The body was widened