What it is
Orpheus is a launchpad on Elysium where every coin is an instrument. The chart plays the music. Buys and sells become notes, and the price history turns into a song that lives on the chain.
Rules
| Scale | Every note is in one pentatonic scale. The key is picked from the coin address, so each coin sounds a little different. |
|---|---|
| Grid | 16 steps per bar. Each trade lands on the next free step. |
| Buy | The melody moves up 1, 2 or 3 scale steps. Bigger trades move further (at $50 and $1,000). |
| Sell | The melody moves down by the same rule. |
| Loudness | From the trade size in USD, on a log scale. |
| Tempo | From trades per minute, between 70 and 160 BPM. |
| Band | Drums keep time and get busier as tempo rises. Bass follows the price against one bar ago. Pad holds a chord, brighter when green, darker when red. |
| Quiet bars | With no trades the bar still plays a soft, slow pattern. |
| Clip | Every 90 seconds of trades becomes one clip. Clips join into the coin's song. |
| On-chain | Each clip is packed at 5 bytes per note and written to the Score contract, which emits a Clip event. Anyone can rebuild the song from the chain. |
| Same input, same song | The rules have no randomness. The same trades always give the same notes. |
| Fees | 2% per trade on coins launched here. Montra keeps 0.4%. The rest is split 50/50 between the creator and Orpheus through Montra's fee splitter. |
| Launch cost | Gas only. The creator pays a quoted amount first and the coin launches after the payment confirms. |
Check a song
Read the coin's swaps from the Uniswap v4 PoolManager, run them through the rules above, and pack the notes. The bytes match the notes field of the coin's Clip events on the Score contract. Every clip in the API also lists the trades it came from.
Token
$ORPHEUS is the first coin on Orpheus. Its chart is the first song.