Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
Q:1/4=120
M:2/2
K:G
['B2 B2{c} B2', 'z2 BA (Bd)(ef) (g2 fg) (ef)ed B2']  
X:1
L:1/8
Q:1/4=120
M:2/2
K:G
"^Cheerfully" GA | B2 B2{c} B2 (AB) | d3 e (fe)(dB) | AGAB G2 A2 | B4 z2 (GA) | B2 B2{c} B2 AB | 
 d3 e (fe)(dB) | (AGAB) G2 GA | G4 z2 || BA | (Bd)(ef) (g2 fg) | (ef)ed B2 Bd | e2 e2{g} (f2 df) | 
 (e4 f2) (g/f/e/d/) | B2 B2{c} B2 AB | d3 e fedB | (AGAB) G2 GA | G4 |]  