Singing SwordWeapon 5
Source Pathfinder Gamemastery Guide
Damage 1d8 Slashing
Type Martial
Weight 1 bulk
Perception +11; precise vision 30 feet, imprecise hearing 30 feet
Communication speech (Common and four other common languages)
Skills Performance +15
Int +2, Wis +2, Cha +4
Will +13 (+17 against attempts to quiet its singing)
A singing sword is a +1 striking longsword imbued with the consciousness of a boisterous bard, and therefore constantly sings at all times. A singing sword can't stop singing and in fact communicates in no way other than by singing. A successful Diplomacy or Intimidation check against its Will DC can convince it to quiet its singing to a whisper for 10 minutes, or 20 minutes on a critical success, though it quickly grows displeased at anyone who attempts this repeatedly. The singing sword can spend its actions to attack on its own, with the effects of a dancing weapon's activation, except that its attack modifier is +12. Additionally, it can perform the following activations; each casts a composition spell and follows all the usual rules for compositions.
Activate 
command
Frequency once per minute
Effect The singing sword casts inspire courage.
Activate command
Frequency once per minute
Effect The singing sword casts inspire defense.
Activate 
command
Frequency once per hour
Trigger You or an ally within 60 feet rolls a saving throw against an auditory effect
Effect The singing sword casts counter performance.
Traits
This rarity indicates that a rules element is very difficult to find in the game world. A rare feat, spell, item or the like is available to players only if the GM decides to include it in the game, typically through discovery during play. Creatures with this trait are rare. They typically can't be summoned. The DC of Recall Knowledge checks related to these creatures is increased by 5.
EnchantmentEffects and magic items with this trait are associated with the enchantment school of magic, typically involving mind control, emotion alteration, and other mental effects.
IntelligentAn item with this trait is intelligent and has its own will and personality, as well as several statistics that most items don't have. Intelligent items can't be crafted by normal means, and they are always rare or unique.
OccultThis magic comes from the occult tradition, calling upon bizarre and ephemeral mysteries. Anything with this trait is magical.
VersatileA versatile weapon can be used to deal a different type of damage than that listed in the Damage entry. This trait indicates the alternate damage type. For instance, a piercing weapon that is versatile S can be used to deal piercing or slashing damage. You choose the damage type each time you make an attack.