Originals Backing Tracks

I am looking for musicians with experience in producing backing tracks for my own work. The service provider may receive a share of the royalties on music streaming platforms as a collaborator and arranger, but the exclusivity of the partnership must be preserved for each song produced. If the service provider chooses to charge for the service and waive the royalties mentioned above, they will need to send a formal authorization via email, signed and acknowledged, waiving royalties and the rights to collect revenue from public performances. The musician must have musical affinity with several genres: blues, jazz, jazz funk, soul, vintage rock, blues-rock, ballads, etc.