====== Trees for decoding tone info ======

===== Bands with tones tree =====
  * 1: 1 bit
  * 2: 3 bit
  * 3,4: 4 bit
  * 5..8: 5 bit
  * 9..16: 6 bit

===== Tone per band tree =====
  * 0: 1 bit
  * 1: 2 bit
  * 2: 3 bit
  * 3: 4 bit
  * 4: 5 bit
  * 5: 6 bit
  * 6: 7 bit
  * 7: 7 bit
(this is in fact "truncated unary encoding")

===== tone per band delta to master tree ====
  * -4..-2: 6 bit
  * -1: 3 bit
  * 0: 1 bit
  * 1: 2 bit
  * 2: 4 bit
  * 3: 6 bit

===== tone pitch delta tree =====
  * -128..-63: 11 bit
  * -62..-14: 10 bit
  * -13..-11: 9 bit
  * -10..-6: 8 bit
  * -5..-3: 7 bit
  * -2: 5 bit
  * -1: 4 bit
  * 0: 1 bit
  * 1: 4 bit
  * 2: 5 bit
  * 3..8: 7 bit
  * 9..12: 8 bit
  * 13..38: 9 bit
  * 39..93: 10 bit
  * 94..127: 11 bit

===== HDR level tree =====
  * 20..23: 8 bit
  * 24: 6 bit
  * 25..27: 5 bit
  * 28..37: 4 bit
  * 38..42: 5 bit
  * 43..47: 6 bit
  * 48..51: 8 bit

===== HDR level difference tree =====
  * -16..-9: 8 bit
  * -8..-6: 7 bit
  * -5,-4: 6 bit
  * -3,-2: 4 bit
  * -1: 3 bit
  * 0: 2 bit
  * 1,2: 3 bit
  * 3: 4 bit
  * 4: 5 bit
  * 5,6: 6 bit
  * 7: 7 bit
  * 8..15: 8 bit