Music or Sound FX

Honestly, like a lot of creative work, it depends on how it's used and the skill of the creator. (Edit to add) For instance, I find music can be distracting if it's loud or incongruous with the scene. Or if it's super bland. Sounds effects are great and best used to hide the sound of pumps or prop inflating sounds. They can also heavily shift the intent of the scene; whether the growth is natural or more inflation based, for instanced. Music is hard to get right largely because of copyright. I like to create (for my personal use) montages of growth with songs like "my humps" overlayed. (Only reason I would ever listen to that song)