A lot of bands don’t want creative and interesting arrangements because it’s not appropriate for their gigs. If you are doing weddings or corporate gigs, you should probably be playing the songs in a way that the audience immediately recognizes. Writing the music for those types of gigs is called transcribing – or as we say on the streets, “doing a lift.”
Writing lifts or transcriptions is an entirely different art from writing arrangements. The arranger must listen to the recording and write parts for the band that will sound as close to the original recording as possible.