I composed this little tune recently:
X:1
T:Gan Ainm
M:6/8
L:1/8
R:jig
K:Gmaj
G2G ABd | fgd Geg | d2c Bcd | BGD BAF |
G2G ABd | ced afd | g2f gec | dBG cBA :|
K:Em
|: G2E FGB | ABG2 FD | EFG c2d | BAG BAF |
E2E FGB | cBc edf | e~B2 edc |1 BGE AFD :|2 Bcd BcA ||
It is intended to be played as a jig, but many people I showed the tune to mentioned that it sounds like a waltz. I also find the tune easier to play when playing in 3/4 with waltz rhythm than in 6/8 with jig rhythm.
Why is this? 
Many thanks in advance!
PS: Didn’t know where to put this thread…