Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
M:3/4
K:G
['GB/d/ dg', 'gB Bg (g/f/).e/.f/ gA Ac (c/B/).A/.B/ ca']  
X:1
L:1/8
M:3/4
K:G
 GB/d/ dg g2 | dc Bc/A/ AG | GB/d/ dg b2 | ag fg/e/ ed :: gB Bg (g/f/).e/.f/ | gA Ac (c/B/).A/.B/ | 
 ca ag gf | (f/e/).^d/.e/ ed d2 | gB Bg (g/f/).e/.f/ | gA Ac (c/B/).A/.B/ | ca Bg Ac | 
 (c/A/)G/F/ F2"^?" G2 :|  