Manor Harpsichord ★★★

Taken all the way down to base materials, one Manor Harpsichord is 2 crafting steps deep and needs 3 intermediates — Cobalt Ingot ×4, Mahogany Lumber ×4 and Spruce Lumber ×4 — which resolve to 6 distinct raw materials totalling 39 units, plus 55 crystals.

That bill outweighs 11,756 of the 13,602 recipes tracked here and 1,225 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 3 of those crystals go into the final step; the other 52 are burned by the intermediates, so the real crystal cost is 20 Fire Shard, 20 Wind Shard, 12 Wind Crystal and 2 other kinds.

The chain crosses two disciplines — Carpenter to Lv 50 and Blacksmith to Lv 42 — so no single class can finish it unaided.

4 of the 6 raw materials come out of the ground, and one of them is time-gated: Spruce Log (9:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Cobalt Ingot has the widest use: 145 recipes call for it, spanning seven of the eight crafting classes.