Modern didgeridoo designs mouthpiece with a concave face that is close to double the diameter of a regular didgeridoo mouthpiece. This mouthpiece gives a player more room to control the vibration of their lips at frequencies below the traditional drone. The technique is similar to playing pedal tones on a brass instrument. The desired tone is different then brass, and there for the embouchure used to play it is different than brass technique. The most prominent playable note on these instruments is always one octave below the fundamental didgeridoo drone. Several other drone-notes can be played below the fundamental as well, and these
Bit mouthpiece when used this way the bit is relatively mild. This latter method is only possible because bit keepers ensure the bit stays in a fixed position in the horse's mouth, and thus bits that do not use bit keepers (e.g., a D-ring or eggbutt) do not have this milder option. This bit can put pressure on the tongue, although it also adds pressure to the bars and lips of the mouth. It contains a double jointed mouthpiece similar to the French link, with the center section a flat plate. In its original form, the plate was intended to lie across