Create a musical composition using the provided alphabet sequence and motif.
X:1
L:1/8
Q:1/4=112
M:2/4
K:G
['G (BB)(GA) (FG) z B GcBA', 'z G DG G>A Bc (d>B) Gc(B>A)']  
X:1
L:1/8
Q:1/4=112
M:2/4
K:G
"^Allegretto" G | (BB)(GA) | (FG) z B | GcBA | (GA) z || G | DG G>A | Bc (d>B) | Gc(B>A) | 
 (FG) z ||  