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