Hulusi is classified according to the number of pronunciations, the form of the tube, the pitch, the range, the place of origin, the form of disassembly, the form of tuning, and the material.

number with tube

Two-tone Hulusi - only the high-pitched pipe makes a single tone, and the other pipe only acts as an accessory.
Three-tone cucurbit flute - each of the two attached pipes emits a single tone. The bass attached pipe is not commonly used, especially the practicality of the mid-bass cucurbit flute is almost zero.

Attached form

Plug-in - the monophonic accessory tube is plugged with a soft plug.
Press the hole type - the pronunciation of the monophonic pipe must be controlled by the little finger of the upper hand or the thumb of the lower hand.
Polyphonic - There are four sound holes on the polyphonic attached pipe, which can cooperate with the supervisor to make simple melody sounds.

pitch

It can be divided into [super treble cucurbit], [treble cucurbit], [sub-treble cucurbit], [alto cucurbit], [tenor cucurbit], [bass cucurbit], [super bass cucurbit] Wait.

range

Traditional Hulusi - The standard traditional Hulusi range is a perfect octave plus a perfect fourth, that is, it contains seventeen semitones, a total of nine full-hole tones.
Amplified range Hulusi - is divided into two types: plus key and no key. On the same master the vocal range is widened to one octave and another five notes.

Origin

Yunnan cucurbit silk - sweet, mellow and clear in tone, it is a standard traditional type of cucurbit silk, with a distinct Dai style.
Northern Hulusi – rough, open sound, and loud. However, some manufacturers produce cucurbit silk one tone less than the standard traditional type cucurbit silk.
Other Origins - Tones vary.

disassembly form

Removable gourd wire - the main tube and the attached tube can be removed from the gourd, which is convenient for professional maintenance and easy for users to make minor adjustments.
Non-removable cucurbit wire - the main pipe and the attached pipe are glued to the hoist, and non-professional maintenance personnel cannot disassemble it.

Tuning form division

Tunable Hulusi - the main pipe and the attached pipe are equipped with copper tuning syllables (referred to as copper plugs), which can make fine adjustments to the pitch, but cannot adjust the barrel tone. Tuning is non-linear adjustment and cannot be changed after adjustment.
Non-tunable cucurbit silk - no copper tuning syllables (referred to as copper plugs) are installed on the main and attached pipes.

Sort by material

Gourd, wood, gum, cloisonne... double-pipe cucurbit silk
Traditional double-pipe cucurbit silk - two identical supervisors mounted on the same gourd, simultaneously producing melodic double tones.
Double-pipe and two-tone cucurbit silk - combined cucurbit silk. That is to say, the two main supervisors with the key of F and bB are installed on a double-chamber double-mouth gourd, and combined into a wide-range gourd silk in the key of F. and so on
Can be combined into many tones of gourd silk.
Double-pipe chord cucurbit flute - two main pipes A and B, which are matched according to the major third or the minor third, are installed on the same gourd, and chord sounds are produced at the same time.