At 10:33 PM 11/28/98 -0800, you wrote:
>I understand that C/G is the most popular arrangement for concertina for
>playing Irish music, yet most of the tunes that I know are in G or D. Would
>not D/G be more useful for playing all those D tunes? Are there really that
>many tunes in C?
You forget! This is the music that says B/C accordions are appropriate for
D and G tunes! Ha!
For concertina, three-row C/G is actually quite facile for tunes in D ...
every note on the scale is under the three strong fingers except for that
pesky F# on the lower row. The only note that requires you leave the main
two rows is the C# on the right hand. The G and the A come in both
directions. C/G three-row also allows you more ornamentation options than
a D/G might. The secret is you just have to get fluent in crossing rows.
Doing this will increase your choices in all keys, not just D.