Powers

Singing

The sword can sing with an unearthly voice. The voice has the effect of a bard’s counter song, able to counter the effects of hostile sound, whether it be songs, chants, wails, or even commands and suggestions from magical spells. The sword's song can still shriekers and negate the song effect of harpies, though a bard can negate its powers by singing a counter harmony.

While the song is heard, the bearer of the sword is infused with a sense of confidence and excitement, and never checks morale. The song confers upon the bearer immunity to charm, command, confusion, fear, friends, repulsion, scare, and suggestion. Emotion cast on the bearer reflects to evoke a rage result on the spellcaster.

The sword's song can entrance intelligent creatures of up to 2 Hit Dice (not including undead or creatures from other planes). lf such creatures fail to save vs. spell, they are subject to a suggestion from the sword's bearer.

When the wielder casts a charm, hold, sleep, or suggestion spell while the sword sings, the duration is doubled. Furthermore, sleep can affect creatures normally unaffected by sleep spells.

Harmony

The sword can harmonize with any other singer or singers to amplify the affects of their song.

Interactions

Moon Blade - Shed light will default to moonlight, unless a color is specified or the chromatic blade is activated.
Dreamwarning - Activating subdual damage negates severing.
Nature's Friend - When used against living wooden creatures, the sword does double maximum damage.
Flame Tongue - When the sword is flaming, it can cut through two feet of ice in a round.