What are the five tones that make up the pentatonic modulation of Chinese folk songs?

Gong, Shang, Jiao, Zheng and Yu. According to the order of the five tones, starting from the Gong tone to the Fei tone, the sequence is: Gong - Shang - Jiao - Zheng - Fei; if arranged according to the order of pitch, it is: 1 2 3 5 6 Gong, Shang, Jiao, Zheng (zhǐ), Fei. In the Tang Dynasty, the words "合、四、乙、尺、工" were used.

The pentatonic mode is widely used in Chinese ancient and folk music, and on this basis, it has formed the variations of Chinese folk tuning and a complete music theory system. "Ethnic Tuning". Pentatonic modes require not only the singer's natural ability, but also the singing technique created by long-term training and development.

Expanded information:

Pentatonic playing

The seven tones of natural major are played one next to the other, with second intervals between each tone, and with no "gaps" in between; it is fingered by a triad connected to a quartet with a turn of the big finger.

In the pentatonic scale, the intervals between the two pairs of tones from horn to leheng and from plume to palace are thirds, which means that there is a distance to be "spanned" in the progression of these two pairs of tones; its fingering consists of a triad connected to a diatonic group, which spans the relatively long intervals from horn to leheng and from plume to palace.

These characteristics not only distinguish the pentatonic scale from the natural major, harmonic minor, and melodic minor, but also make the pentatonic scale the focus and difficulty of using it as a basic exercise.

Baidu Encyclopedia - Pentatonic Modes