SCROOMS Scroomdex: Every Scroom, Area and Rarity

Scrooms come in six rarities: Common, Uncommon, Rare, Wondrous, Fabled and Eversung. Eversung is the rarest; only two are known, The Violet Fool in Sanctum Magus and The Pale Vessel in Tall Trees. Official badges reward streaks on the top two tiers, such as Untouchable for 25 Fabled or Eversung catches in a row without an escape.

Any Scroom can also roll a tone: Melodic, Harmonic or Resonant. The Index tracks each tone separately, and catching your first Harmonic Scroom earns the Harmonic Ear badge. During Pale Moon weather (a moon icon with x2 next to the clock), tones are twice as likely.

Mutations change a Scroom's look and value. Dimstra's video shows a green weather mutation from the Forest Spirit's Lyre (2x sell value) and Runic from the Deepchord (1.5x). Some quests ask for a specific mutation, such as Iblis's request for a Runic Sigilith, Inkling and Occulot.

A Scroom's frequency works like weight in Fisch: each catch rolls a value inside its Index range. According to the Fandom wiki, Toma's quest in Bluestone Caverns wants a Flintcap of at least 120 Hz.

Most Scrooms spawn anywhere in their area, but some appear more often at a favourite spot. Beebzs reports that Arabella's Unveiling Tune, learned from her quest in Bluestone Caverns, reveals these spots.

Songkeeper's Grove: catch Funglebee on the grass below Jones's beehives by the waterfall; Jones's Beekeeper's Request pays 450 Chimes for one. Koroom, the Fabled, can appear anywhere in the grove.

Bluestone Caverns: according to Dimstra, Nightfang only appears inside a marked circle reached by parkour above the waterfall. Gaion, the Fabled, can appear anywhere in the caverns.

Tall Trees: The Pale Vessel only appears at the fountain in a cave that opens after you finish the area's quests. Dimstra needed three to four hours to catch it.

The World tab of the Index lists three finds that can turn up in any area: Wishing Shard, Fortune's Favor and Scholar's Sonata, all at 375-625 Hz, so you need an instrument that reaches 375 Hz. Fortune's Favor is a Songsheet that adds 13% Luck when you play it on the Ocarina. Wishing Shards are spent to enchant instruments with the Hymn of Blessing, which Faerleon teaches you in Sanctum Magus.