"Great music is of course a vital part of the experience, but with all the manipulations we do with our systems, we are fascinated by the idea of sound in itself as a hobby."
Unless you sitting in front of a live performance without any amplification, the music is being manipulated. All the music we hear has been recorded, molded, shaped, mixed according to someones ears that are not are own.
Lets face it, IMHO everyone listens to music using a ratio of sound & music. It's hard to have on without the other.
I mean if you love going on a road trip, you gotta have a means to an end. So how do you hit your happy trails? Thumbing, biking, riding a motorcycle, driving your car, RV, or OHV. Heck, or even cruising on a Greyhound bus (You can't say you've lived a full life without riding on a Greyhound at least once). Your ride is the equivalent to the "hobby" to listening to music.
How does that old saying go - the journey is the reward?