> Many casual listeners cannot even detect such a small change in tempo.
I DJ both electronic formats as well as "general pop hits" nights. People may not consciously tell, but you take a well know track, and speed it up 3-5% (which also increases the pitch, unless you enable pitch-time stretch correction), and it injects a noticeable amount of energy into the dancefloor.
It's also just a social/"conformal" thing. Tempo regions serve as a kind of Schelling point for styles and energy levels. So if you have a given sub-style or vibe, you are likely to produce music in that style and speed, so it can readily mix in the same context.
Again, all of these micro-genres listed still fall under the aegis of "psytrance" and djs can and often do mix across boundaries and pitch stuff up/down as a part of their art. It's really about self-association and capturing specific vibes, vs exclusion or genre-policing.
I DJ both electronic formats as well as "general pop hits" nights. People may not consciously tell, but you take a well know track, and speed it up 3-5% (which also increases the pitch, unless you enable pitch-time stretch correction), and it injects a noticeable amount of energy into the dancefloor.
It's also just a social/"conformal" thing. Tempo regions serve as a kind of Schelling point for styles and energy levels. So if you have a given sub-style or vibe, you are likely to produce music in that style and speed, so it can readily mix in the same context.
Again, all of these micro-genres listed still fall under the aegis of "psytrance" and djs can and often do mix across boundaries and pitch stuff up/down as a part of their art. It's really about self-association and capturing specific vibes, vs exclusion or genre-policing.