Every prompt below was run on a paid plan. The ones that failed are here too, at the bottom, struck out and explained.
ambient drone, cavernous reverb, deep sub bass, distant field recording of wind, tape hiss, no drums, no guitar, slow evolving, crypt atmosphere
Suno reads dark ambient through texture, not melody. It responds to drone, cavernous reverb, tape hiss, field recording, sub bass. Leave the tempo out — name a number and the model treats it as permission to add a beat. The line between this and doom is instrumentation, so say no drums, no guitar or it drifts. Physical-space words carry it — crypt, cavern, cathedral.
dark ambient, glacial pads, sub-bass drone, cathedral reverb, no percussion, no melody, glacial pace
ritual dark ambient, low choral swells, granular texture, distant metallic clang, tape saturation, 60 bpm
cavernous drone, water drips, sub bass, reversed pads, cold air, no drums, field recording
dungeon synth adjacent, analog pad drone, muffled bells, dusty tape, minor key, no rhythm
black ambient, wall of low drone, harsh air texture, sub rumble, no instruments named, oppressive
mournful drone, distant bowed strings, deep room tone, dust and tape noise, no percussion, unhurried
dark ambient, 90 bpm, deep bass, atmospheric, moody, epic
dark ambient horror soundtrack with jump-scare stingers and orchestra
lo-fi dark ambient chill beats to relax
dark ambient, oppressive, wall of drone, crypt atmosphere, tape hiss, no drums, no guitar, slow evolving