A safety-deposit box key from Lord Glomus
First off you need to go from recall in Towne of Decara w;n; all west to the down, and go down, locate a palace guard wearing a uniform and kill the guard, once you have the uniform from recall head w;n; all east to ogre gateguard, wear the uniform, and go north. Here is the keymaster, fairly easy mob, dispel and kill it. Once you obtain an obsidian key from him head back to recall and from there go w;n;all west to the first locked door, unlock this with the obsidian key (recommend you take a friend for this part) go south, and lock the north door to delay people from reaching you, go west and search, you will uncover a down. In the down is the accountant.
Immune to: summon, charm, poison Resistant to: necromantic Vulnerable to: holy, silver * 'sanctuary', cast at level 350. * 'fireshield', cast at level 350. * 'haste', cast at level 350.
From the accountant you will need "a ledger". The ledger can be fragged, so care should be taken not to destroy this. Once you obtain a ledger one of you needs to go visit Lord Glomus, from recall w;n; all west to down, down;s;all west, is 2 rooms into NPK. Go into his room without being aggroed and he will notice the ledger in your inventory, when he speaks, say yes and give him the ledger. Several guards will repop and all attack you, so flee out. He will either have given you "a safety-deposit box key" or "Lord Glomus' key". The key you want is the former, so if he gives you one excellent, if not, back to camping the accountant for another ledger.
A safety-deposit box key from The Loan Officer
From recall go n;w;w;w;w;s;w;s;s;se;ne;n this will take you to Towne of Decara bank, west is the The loan officer who has a small chance of repoping with "a safety-deposit box key" camping him can cut out camping the keymaster and accountant, but usually i camp both sets of mobs.
Once either method provides you with "a safety-deposit box key" magic unlock the door south of the The loan officer in the bank, and use the key to unlock the safety-deposit box, if you are lucky it will contain:
Item 'a hand-carved viola' is type musical-instrument, alignment 500, made of reinforced-wood, has keywords 'viola carved hand'. This item weighs 0 stones and 85 pebbles, and is valued at 49,850 gp. This level 241 item has the attributes: identified enforce-level insulated nodecay A hand-carved viola is in excellent condition. This chordophone - musical-bow instrument has a 71 musical complexity modifier. *This item may be repaired 2 times. A viola fashioned of gleaming hardwoods rests before you. Its surface shines with the glow of well-polished wood. Obviously an artisan of great skill has crafted this instrument. Its graceful lines call out to be cradled. This is an instrument worthy of a fine musician indeed!