sleep ambient minimal texture, primary layer = pure low frequency drone only, single continuous sustained drone, constant pitch or ultra slow micro drift only, no rhythm, no pulse, no pattern, no events, seamless loop bed, dark warm soft tone, no attack, no transients
secondary layer = extremely sparse soft muted tone hits, single note only, one note at a time, very low density events, spacing very wide, no melody, no phrases, no runs, no ornaments, no rolls, no trills, no arpeggios, no repetition bursts, rounded attack, low velocity, background level only
very slow tempo feel 40–52 bpm feel
maximum note density extremely low
sound texture first, not music
NO kalimba
NO piano
NO plucked instruments
NO melody instruments
NO expressive lead
NO strings
NO violin
NO bowed sounds
NO pads with motion
NO evolving layers
NO flute
NO wind
NO ethnic
NO world instruments
NO percussion
NO rhythm layer
NO bright tones
NO high frequency sparkle
NO ornamentation