Possibly, but it's a distinction with a difference when it comes to the reality of what the things actually are, which is surely more relevant. I mean I could consider the noise of smashing up your car with a baseball bat to be particularly musical, and might want to sample it and use it in my own compositions, so from that point of view it would also be "just an instrument involved". I'm sure you might be able to come up with other considerations that would make it distinct from owning a piano though.
Well a piano is a much more reliable tool for music for sure. I agree a baseball bat to a car could make some good sounds in the right context. You want to draw a line at what can be reasonable described as a "performance" versus not a performance. I think there's some reasonable argument for having some kind of rights to your performance but not one that creates a culture of imagining a barrier between works that don't sample recorded sounds and works that do.
Here's some food for thought:
If you write a melody and hire someone for a flat fee to perform it, that performer is not the owner of that performance. This isn't even a contract thing, signing away rights. It's already the default. The writer or creator of the melody, shared equally with the publisher of that melody own, that recorded performance of the melody. Doesn't matter how much soul or flair the instrumentalist brings. The law is clear and somewhat arbitrary.
Now say you're someone else. In fact let's get all the way dirty and say you're the instrumentalist! You're making computer music now and you decide to sample your own performance, chopping your guitar licks, keeping a few notes in the original succession and doing something else with other notes. You've written a new piece that contains the old piece, and "played" from the old recording. While you technically own your new piece you cannot legally publish your remix of your literal-performance because it's someone else's performance, because they wrote it. But you wrote this one, it's a different work, and the sample is from your strumming.
That's the legal framework of all of this. A predefined ownership split 50-50 between the melody & lyrics writers on one half and the publisher on the other, nothing else except some common law tacked on. It is enclosed in very specific laws designed to protect specific people and specifically not others, to protect a certain mode of creativity and not others. The legal line of "performance" is clearly arbitrary. The creative line of "performance" vs "musical source of new material" is definitely not tied to any legal line.