Composer's Flute

The Composer's Flute is the fourth instrument acquired by doing quests for the Composer and is a part of the For The Flute quest.

When used, it increases the player's critical hit chance by 8% for 2 minutes.

Source

 * Composer
 * For the Flute
 * Instrument Carving Knife + Aged Hardwood = Composer's Flute