A Detailed Introduction to the JDR Trochilus 10 Holes Chromatic Harmonica

January 22, 2026

The Trochilus is a ten-hole chromatic harmonica that took more than two years to develop.

It not only solves the difficulty of bending and overblowing the ten-hole harmonica, but also solves the problems of the chromatic harmonica with no valve obstruction.

New design, new experience, new track

Blues/Richter Tuning(Blue): When the slider isn't pressed, it's a traditional blues tuning. When the slider is pressed, the whole harmonica is raised by a semitone. At this time the vocal range is three octaves.

Chromatic/Solo Tuning (Yellow): It is fully tuned according to the chromatic arrangement, with a two-and-a-half-octave range, from bass do to treble so. It can play most songs without worrying about valve adhesion.

Pop Tuning(Red): When the slider isn't pressed, it's a pop tuning . Novices and 10-hole entry-level players can get started quickly. It has a complete range of three octaves, covering all semitones, and can play all repertoire.

	Phosphor bronze reed without valve The Trochilus harmonica's blow and draw reeds are arranged in the same up-and-down arrangement as a traditional blues harmonica with no valve obstruction.
	Traprzoldal shaped comb The shape of the comb is a trapezoid design, with a short tail and ergonomic design making it more comfortable to hold.

It can be washed and cleaned directly and is easy to maintain.


Blues/Richter tuning	Chromatic tuning	Pop tuning
When the slider is pressed, the whole harmonica is raised by a semitone.	It is 0.5 octaves less than a normal chromatic harmonica.	It is a pop tuning harmonica.

	Portable size The Trochilus harmonica is only ½ the size of the chromatic harmonica and has a complete range.
	Smooth slider and square comb The mouthpiece has a square structure, providing greater intake space to increase the volume of the harmonica.