Create a musical composition incorporating the given motif following the designated alphabetical pattern.
X:1
L:1/8
M:2/4
K:F
['[BG] z', '[cA] z [AE]2- [AE][dB] [cA][BG]']  
X:1
L:1/8
M:2/4
K:F
"^F/C:""F" [cA] z [AF]2 |"C7" [BG] z [GE]2 |"F" [AF] z [FC]2- |"C7" [FC][BG] [AF][GE] | 
"F" [AF] z [FC]2- |"C7" [FC][BG] [AF][GE] |"F" [AF][BG] [cA]2 | [dB][cA]"G7" [BG][AF] | 
"C" [GEC]4 |][K:C]"C" [ge] z [ec]2 |"G7" [fd] z [dB]2 |"C" [ec] z [cG]2- |"G7" [cG][fd] [ec][dB] | 
"C" [ec] z [cG]2- |"G7" [cG][fd] [ec][dB] |"C" [ec][fd] [ge]2 | [af][ge]"D7" [fd][ec] | 
"G" [dBG]4 |][K:G]"^G/D:""G" [dB] z [BG]2 |"D7" [cA] z [AF]2 |"G" [BG] z [GD]2- | 
"D7" [GD][cA] [BG][AF] |"G" [BG] z [GD]2- |"D7" [GD][cA] [BG][AF] |"G" [BG][cA] [dB]2 | 
 [ec][dB]"A7" [cA][BG] |"D" [AFD]4 |][K:D]"D" [af] z [fd]2 |"A7" [ge] z [ec]2 |"D" [fd] z [dA]2- | 
"A7" [dA][ge] [fd][ec] |"D" [fd] z [dA]2- |"A7" [dA][ge] [fd][ec] |"D" [fd][ge] [af]2 | 
 [bg][af]"E7" [ge][fd] |"A" [ecA]4 |][K:A]"^A/E:""A" [ec] z [cA]2 |"E7" [dB] z [BG]2 | 
"A" [cA] z [AE]2- |"E7" [AE][dB] [cA][BG] |"A" [cA] z [AE]2- |"E7" [AE][dB] [cA][BG] | 
"A" [cA][dB] [ec]2 | [fd][ec]"B7" [dB][cA] |"E" [BGE]4 |][K:E]"E" [bg] z [ge]2 |"B7" [af] z [fd]2 | 
"E" [ge] z [eB]2- |"B7" [eB][af] [ge][fd] |"E" [ge] z [eB]2- |"B7" [eB][af] [ge][fd] | 
"E" [ge][af] [bg]2 | [c'a][bg]"F7" [af][ge] |"B" [fdB]4 |]  