A JBL Flip 6 or Marshall Emberton costs less than a single good turntable, weighs nothing. Means anyone can be the person who controls what plays. That sounds like the democratization of the party. It isn't.
Portable Bluetooth speakers eliminated the DJ as a role — someone paid to manage transitions, read the room, endure blame for a bad song choice. They removed the gatekeeper and replaced them with something worse: invisible authority. Now the person holding the phone decides. Because they're not a "designated" anything, their choices read as neutral rather than curated. The speaker just travels with them.
Research on shared audio environments shows parties with one amplified source — a stereo in the living room, a stage with a band, a DJ booth. Report measurably fewer mid-party conflicts over song selection than venues where multiple Bluetooth speakers are connected or where one person's device dominates but carries the full social weight of their taste. The single source creates a focal point. Everyone knows where the music comes from. Everyone knows who to negotiate with.
What actually happened is that authority diffused into proximity. The person nearest the phone, or the person whose battery lasts longest, or the person with the loudest voice in the moment. They become the de facto curator without the social contract a DJ accepts. A DJ can say "I'm saving that for the peak." A guest with a JBL speaker just... keeps playing their song. No explanation. No role to lean on.
This matters because it's not really about parties. It's about what happens when you eliminate a formal role expecting it will distribute power more fairly. Instead create a situation where power belongs to whoever occupies the physical or temporal advantage. You see this in every reorganization that claims to flatten hierarchy but simply hides the new pecking order inside process. The music still gets decided. Someone's still in charge. You've just made it impossible to negotiate with them because they're not supposed to have power at all.