Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/8
M:2/2
K:D
['[DD]EDB, A,G,A,B,', 'A2 A3']  
X:1
L:1/8
M:2/2
K:D
 !slide![DD]2- | [DD]EDB, A,G,A,B, | !slide![DD]2 [DD]2 (D F2) E | D2 DB, A,2 B,2 | 
 D2 !slide![FA]2- [FA]E [DD]2- | [DD]EDB, A,G,A,B, | [DD] [DD]3 !slide![FA]3 E | 
 [DD]2 [DD]B, A,2 B,2 | E2 D2- D2 || ([FA-] | [AA]2) [AA]2 [FA]3 [EA] | [FA][EA] [DA]2- [DA]2 A2 | 
 A3 A/B/ A3 A | B2 A2 A3 ([EA-] | [FA]2) A2 A3 A | B2 A2- A2 (ef-) | fafe d4 | 
 B2 A2 !slide![FA]3 A | [FA][EA] [DA]2 [B,D]2 [A,D]2 | E2 D4 !slide![AA]2- | 
 [AA]2 [AA]2 !slide![AA]3 A | [AB] [AA]4 !slide![FA]2- | [FA]AAB A3 A | 
{A} B2 A2- A2 (!slide![FA-]2 | [AA]2) [AA]2- [AA]3 A | B2 A2 A3 ([EA-] | [FA]2) A2 A3 D | E2 D4 ||  