Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/8
M:4/4
K:D
['d2 df', '(Ag)gf gfgb'  
X:1
L:1/8
M:4/4
K:D
 A | (Ad)dc d2 df | edcd efga | fddc d2 df | edcB AGFE | (Dd)dc d2 df | edcd efga | fddc d2 df | 
 (ed)cd efge || (fa)a^g a2 af | bagf ef g2 | (Ag)gf gfgb | agfe de f2 | (Dd).d.d (dc).c.c | 
 (cB).B.B BA A2 | (Ag)gf gfgb | afge d2 d ||  