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The body is a 24-hole diatonic harmonica that ranges from B 2 to D 6 (covering 3 octaves). Its 11-hole mouthpiece can slide along the front of the harmonica, which gives numerous chord choices and voicings (seven triads, three 6th chords, seven 7th chords, and seven 9th chords, for a total of 24 chords).
The chromatic harmonica is a type of harmonica that uses a button-activated sliding bar to redirect air from the hole in the mouthpiece to the selected reed-plate desired. When the button is not pressed, an altered diatonic major scale of the key of the harmonica is available, while depressing the button accesses the same scale a semitone ...
Playing the harmonica in a key a fourth below its intended key. Playing just the unbended notes, this position gives the mixolydian scale between 2 draw and 6 blow. However, bending the 3 draw allows the player to play a minor third (or a blue third), allowing a player to use a C harmonica to play in G mixolydian or G minor.
Richter tuning is a system of choosing the reeds for a diatonic wind instrument (such as a harmonica or accordion).It is named after Joseph Richter, a Bohemian instrument maker who adopted the tuning for his harmonicas in the early 19th century and is credited with inventing the blow/draw mechanism that allows the harmonica to play different notes when the air is drawn instead of blown.
The general dimensions of the 12- and 14- hole Hohner harmonicas are a bit bigger than regular diatonic harmonicas. The M36401 and M36501 harmonicas (in the key of C) are pitched one octave lower than the standard 10-hole C diatonic. Thus, hole-4 blow is the same pitch as hole-1 on a regular diatonic harmonica in the key of C.
This tuning has the major diatonic scale in the middle and top octaves of the harmonica with two chords in the lowest octave: the tonic in the blow and the dominant or fifth chord in the draw. This is very effective for chordal playing behind relatively simple folk melodies in either the tonic or the fifth of the key of the harmonica.