When playing the dragon head sanxian, you can take a standing or sitting position, hang the strap around your neck, place the piano body horizontally on the waist, and place the piano box near the right crotch or right thigh, and the head of the piano is inclined to the upper left.

Hold the piano rod in the tiger's mouth of the left hand, press the strings with the index finger, middle finger and ring finger to pick up the sound, and the right index finger covers the hollow conical horn tip or ties a bamboo pick to pluck the strings to pronounce.

For the tuning of the faucet sanxian, the middle string and the inner string are in a fifth or fourth relationship, and the outer string and inner string are in an octave relationship. The larger ones are usually tuned as: d, a, and d1; the smaller ones are usually tuned as: e1, a1, e2. The sound is round and deep, and the volume is loud.

In the left hand, there are portamento, kneading, beating, and chord playing methods, often using large-scale "slide kneading" techniques; Longtou Sanxian is mainly used for Bai rap and folk song accompaniment, but also for solo or ensemble.