Here is the full list of all 37 Songbringer achievements.
Finish the fourth dungeon.
Speak friend and enter.
Gain the power to meditate during battle.
Complete the Trial of Ren.
Finish the eighth dungeon.
Finish the sixth dungeon.
Finish the fifth dungeon.
Perform 50 charge attacks.
Combine two items at the Droidsmith.
Finish the third dungeon.
Clear an easy dungeon of all enemies.
Finish the seventh dungeon.
Walk a secret path.
Open a secret wall.
Kill four or more enemies at once.
Meditate or use a cactus to find a secret.
Finish the second dungeon.
Buy an item from a store.
Finish the first dungeon.
Have less than 1 courage after vanquishing a boss.
Enter any dungeon.
Wield the nanosword.
Complete the game with any percentage of items.
Complete the game with 100 percent items.
Complete the game with 100 percent map.
Complete the game in permadeath mode.
Complete the game in under 2.5 hours.
Complete the game without the sword.
Interact with every NPC.
Kill every kind of enemy at least once.
Unlock all achievements.
Clear a difficult dungeon of all enemies.
Complete the game without buying any items.
Finish the ninth dungeon.
Play the game at 11:11 AM or PM
Craft the Hyper Boots.
Craft the Flamethrower.