The ABS piccolo is a reduced flute. In Italian, the word "piccolo" means small flute. Like the flute, the piccolo is usually set in C major, which is an octave higher than the normal flute (making them the highest flute). Sound range d2 ~ c5. The notation is the same as the flute, but the actual pronunciation is octave higher, which is the highest musical instrument among all wind instruments. The tone is sharp, radiant and bright, with strong penetrating power.

The music of the ABS piccolo is written one octave lower than the standard pitch. The fingering of the ABS piccolo is the same as that of the flute, but the sound is one octave higher than the flute. Many alternate fingerings may also be used to adjust the frequency of their unique pitch, because often many will be out of sound. In the addition of the standard C major piccolo, the piccolo pitch with the D tone is sometimes used to coincide with the flat A, and is excellently used in Italian military bands.
The ABS piccolo tube is only half the length of the flute, and it is mostly used by the third flute in symphony orchestras. The ABS piccolo is a variant of the flute. It is the highest-range instrument in a symphony orchestra and is usually played by a second flute player. Because the sound is sharp, penetrating, and restrained, careful use can make the music of the whole band more loud, powerful and brilliant. The ABS piccolo is often used to express triumphant triumph, enthusiastic dance, or describe the whistling of the wind in a storm, etc.