Irish
Music on the D/G Melodeon
At first sight, it would appear
that the D/G melodeon is unsuitable for Irish music. The instrument
doesn't have all musical notes and there are barely any serious
players using the system. Only the notes of the scale of C, minus
F natural, plus F# and C# are available (ignoring optional accidental
buttons). This facet of the instrument renders most keys unplayable.
Fortunately, the unplayable keys hardly ever crop up, neither
do many awkward accidentals. In actual fact the melodeon is very
suited to Irish music because its limited range falls naturally
into that of the tradition. It has a similar range to the tin
whistle, unkeyed wooden flute and uilleann pipes.
The melodeon lends itself extremely
well to the keys commonly used in Irish music which, in some sort
of order of popularity, are:
- G major (ionian mode, F#) - inside row
- D major (ionian mode, F# & C#) -
outside row
- A minor (dorian mode, F#) - inside row
- E minor (dorian mode, F# & C#) -
outside row
- D major (mixolydian mode, F#) - outside
row crossing for C natural
- E minor (aeolian mode, F#) - outside
row crossing for C natural
- B minor (aeolian mode, F# & C#) -
outside row but tending to cross for B notes to fit the bass
- A major (mixolydian mode, F# & C#)
- outside row
- A major (ionian mode, F#, C# & G#)
- outside row avoiding any G#s
- C major (ionian mode F natural) - rather
awkward as sometimes F naturals are too important to omit
- D minor - forget it
The above is an extremely rough
guide; because of the existence of duplicated notes, row crossing
for smoother bellows operation is often employed.
The notes tend to be "squeezed
inwards" in the circle of fifths. The note F natural rarely
occurs. The key of Am is almost always dorian mode where F is
sharp rather than natural, as in mainstream music. Em occurs in
both dorian and aeolian modes, no trouble, both C and C# are found
on the melodeon. Many A tunes are mixolydian mode making use of
the flattened seventh G natural. Bm tunes almost always occur
in the aeolian mode meaning once again G is natural. The keys
of C and Dm hardly ever occur. Often G#s occurring in the key
of A are often unimportant enough to be left out.

Now there's a picture
to conjure with |
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