i have this i can compose specifically for my phone

Fugees Killing Me Softly +C+C+C+C+CAEGGFFpBBBBBGDEpEEEEEA+CBBA+D
+DA+C+CBB

when i press the C key theres a 1,2,3 or 4 i can put next to it but i dont know what that + means

help

oh and theres little lower case too :wtf: