Everything else
Environment loops sit under the music and stack with each other. Stingers fire once over everything. They are real recordings wherever one exists, several takes each so a tile never sounds canned. Some have choices in Prep: Gunfire lets you pick the gun, how many shots and how far away; each Heartbeat has its own rate, or follows the scene's intensity. Shellshock muffles the music and rings for a few seconds, for blasts and flashbangs. Drag up or down on any stinger or environment tile to set its volume, from a quarter to twice its usual level (the tile shows it); the arrow keys do the same on a selected tile, and Prep has a slider for phones.
Transmit asks for your microphone the first time, then plays your voice through a walkie-talkie filter while you hold it, with the music ducked. In a room, the speakers can feed your voice back into the mic: keep them apart, turn the console down, or wear headphones. Over Discord this device goes quiet, so it can't happen. Radio click keys the handset once. Radio music is a switch: while it's lit, the music plays as if from a small radio, with a little hiss under it.
Discord plays the whole console into a voice channel on your server, so remote players hear it while you run it here. Press Discord, then Add to Discord to invite the bot to your server (once). Join a voice channel yourself, type /connect in any text channel and paste the code the panel shows. While it's live this device goes quiet unless you tick Also play on this device, so Transmit can't feed back. YouTube tracks reach Discord only when you share this tab's audio (Chrome or Edge on a computer); the panel offers it.
Prep (on the console, or before you begin) changes the board. Swap any scene, stinger or environment tile for another, from ghosts and creatures to gunfire and weather, and edit the playlist behind every intensity: paste YouTube, YouTube Music or Spotify links, or links to audio files, and drag tracks into order. It all saves in this browser. The presets give you a starting board, including two for Music from a Darkened Room, with free prep notes for running it.
Theme changes how the console looks: 48 themes for Call of Cthulhu, fantasy, Delta Green, Mothership and more, grouped by genre. Each theme brings its own board until you pick another for it in Prep, and opens on its own track unless you have just changed the music yourself. Your edits to every board are kept.
Settings holds the rest. Copyright-free music only is for streams and recorded videos: the film and game scores (they play from YouTube) are skipped and only our Creative Commons tracks play. Offline downloads every track on your board that can be stored so a session survives bad Wi-Fi (do it at home; the size shows on the button). YouTube tracks, and audio linked from other sites like the Darkened Room radio, always need the internet. Install appears in Chrome and Edge and puts the console in its own window.