Compose a tune that integrates the letter-based representation of the determined musical pattern and the given melodic idea.
X:1
L:1/8
Q:3/8=120
M:6/8
K:C
['A G2', 'B2 c d2 d']  
X:1
L:1/8
Q:3/8=120
M:6/8
K:C
 B2 A G2 G | (gdc) B2 A | G2 B A2 B | c3 B2 A | G2 A G2 g | (gdc) c2 g | 
 B2 g A2 B"^single crot in ms" | c3 c3 || B2 c d2 d | d2 g gdc | B2 c d2 d | efg f2 e | d2 c B2 d | 
 (gdB) B2 g | B2 g A2 B"^single crot in ms" | c3 c3 |]  