The Music Theory Iceberg (Updated)

The surface; roles of instruments; Instrument families; Intervals; Basic chords; A= 440; Key signatures; Time signatures; Treble and bass cleft; Intonation; Shallow waters; Transposition; swing; The tritones significance; Tuplets; Modes; A=432; Alto clef; Baroque tuning; The overtone series; Twilight zone; Keyless music; some instruments have weird transpositions; Perfect pitch; Complex chords; The tritone was never banned in the middle ages; Tenor cleft's use; Bottom of the iceberg; Balero is the only reason why the oboe d'amore isn't a dead instrument; Music for the deaf; Nested tuplets; Music theory is just the study of 19th century European music; Micro tonality; Locrian can be used in music; Negative harmony; The Abyss; Music being written for instruments that don't exist; Polytonality; We are listening to crude music; The undertone series; Celestial music; Irrational time signatures; Music is interconnected with string theory; Crab cannons; All music was predetermined to exist due to quantum physics