The Instruments of War
It's not rare for a trubador or bard to need weapons quickly. Sometimes they sing the wrong song at the wrong time, but more often they're playing in the wrong bar at the wrong time. Alcohol, merriment, and large numbers of people are a volatile combination.

So, what's a bard to do? Some wield the Instruments of War, musical instruments that can keep them alive should their stage become a battleground. While perfectly functional instruments in their own right, all of them are built to deliver blows any attacker wouldn't expect.

Violin of Violence
Price (Item Level): 4100 (9th)
Caster Level: 5th
Aura: Faint; (DC 17) transmutation
Weight: 4 lb.
This violin is expertly crafted and never loses its sheen.
A Violin of Violence grants its user a +5 competence bonus on their Perform (String Instruments) roll, in addition to its +2 bonus for being a masterwork tool. However, anybody with at least 1 rank in Perform (String Instruments) may wield the Violin of Violence as a +1 Heavy Mace.
Prerequisites: Craft Magic Arms and Armor, Shillelagh
Cost to Create: 2025 GP (plus 50GP for a masterwork Violin), 162 XP, 5 days.

Low-Profile Case
Price (Item Level): 2160 (6th)
Caster Level: 3rd
Aura: Faint; (DC 15) illusion (see text)
Weight: 2 lb.
Beyond some exceptionally soft padding, this instrument case looks like any other.
A Low-Profile Case can be affixed with any lock, has a hidden 1-inch lead lining, and has hardness 20 with 30 hit points. But the case's true power lies in what people don't think to examine: When opened, if it has been closed for at least 12 hours, the case casts Magic Aura on its contents, making them appear nonmagical. In addition, the case casts Magic Aura on itself once per day. The case can fit most small or smaller items, and has a padded pocket for thin items like bows in one side.
Prerequisites: Craft Wondrous Item, Magic Aura
Cost to Create: 1080 GP, 87 XP, 3 days.

Fiddler's Bow
Price (Item Level): 3450 (8th)
Caster Level: 5th
Aura: Moderate; (DC 17) transmutation
Weight: 1 lb.
A true Maestro's curved bow, gold-mounted, with pegasus hair stretched between its ends.
This masterwork bow grants a +2 circumstance bonus to all Perform (String Instruments) checks its user makes with it. This bow can also be used as a +1 Composite Longbow, with a strength bonus of up to his or her ranks in the skill, maximum 5. A user with at least 5 ranks in perform (String instruments) is automatically proficient with the Fiddler's Bow.
If holding the bow in one hand and a string instrument in the other, the user may choose to rub the bow across the strings forcefully in lieu of firing arrows. This causes the strings to snap and fire shockwaves of sound from the bow. Each such attack breaks one string (a typical violin has 4 strings), which takes 5 minutes and 5 sp to restring. Shockwaves fired this way function as normal arrows, save that the damage they deal is sonic.
Prerequisites: Craft Magic Arms and Armor, Shrink Item, Launch Bolt
Cost to Create: 1700 GP (plus 50GP for a masterwork bow), 138 XP, 4 days.