Can anybody help me?

Was wondering if anybody has any insight or knows how to do what I'm trying to get done. No matter what either. If I ask it to make a song by describing it or I put in a sample it always adds its own type of synth. I would call it that's really high-pitched and doesn't match the song I'm trying to make. How do I get him to not not add stuff especially high-pitched noises I guess you say. Please help me out man. I really appreciate it