Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
Q:3/8=120
M:6/8
K:D
['.B.A.G .F.E.D', 'E FG .Az.F runs .Az.F .Az.d .Bz.G']  
X:1
L:1/8
Q:3/8=120
M:6/8
K:D
 (dc) | .B.A.G .F.E.D | (F>GF) .F.d.c | .B.A.G .F.E.D | (E>FE) .E.d.c | .B.A.G .F.E.D | 
 (F>GF) F2 A | ABc dAF | EFE E |: FG | .Az.F .Az.F"^music runs out" .Az.F .Az.d | .Bz.G .Bz.G |]  