The gavel close — “SOLD”Signature
The auction's payoff. This is the sound to own — compare the current-style crack against the proposed warm gavel.
Bid placed & outbid — the live rhythm
Coin-clink on each bid; a descending cue + amber ring when you're the one outbid.
Final countdown & the anti-snipe extension
Accelerating heartbeat in the last seconds; a late bid springs the clock back up with a “+15s”.
Standings podium reveal
Rows stagger in, medal rows get a metallic shine. Sound is reserved — only a fanfare the first time you hit #1.
Trade accepted — “deal done”
Two crests slide together and spark at the seam; a warm two-note confirm chord seals it.