Natural Pitches
Every material shatters at its own natural note. Nobody writes them down; you find them with a Hand Tuning Fork.
Strike the fork while looking at a block of ore, stone or gravel. The action bar tells you how strongly it answers: silence, barely, faintly, clearly…
A semitone away the block rings back at its own note, and the fork’s tuner shows the beats between them: you are one step off, up or down. On the right note (cents do not matter) the block resonates: the note is yours, and its page appears here, in JEI and in the crusher.
Ores from other mods have notes too.
Stone: D3
Crushing: cobblestone.
Cobblestone: F3
Crushing: gravel.
Gravel: G#3
Crushing: sand.
Coal: A#3
Crushing: ore: 2 coal.
Copper: C#4
Crushing: ore: 2 dust, raw: 1 dust.
Iron: E4
Crushing: ore: 2 dust, raw: 1 dust.
Gold: G4
Crushing: ore: 2 dust, raw: 1 dust.
Redstone: A4
Crushing: ore: 6 redstone.
Lapis Lazuli: B4
Crushing: ore: 8 lapis.
Nether Quartz: D5
Crushing: ore: 2 quartz.
Emerald: F5
Crushing: ore: 2 emeralds.
Diamond: A5
Crushing: ore: 2 diamonds.
Amethyst: C#5
Crushing: shard: 2 dust, block: 8 dust.