AppAdvice has teamed up with Big Fish Games, our latest AppAdvice Daily podcast sponsor, in order to offer you a chance to win one of five in-app promo codes to unlock the full version of Maestro: Music of Death Collector’s Edition HD ($6.99) for iPad.

Maestro: Music of Death is a hidden object puzzle adventure game that has you investigating a serious illness that’s causing an entire village of people to age rapidly and die. It’s up to you to walk the streets, look through buildings, and speak with local residents to discover clues and uncover the cause of the deadly disease before it’s too late.

Can you find the objects?

You’re able to interact with the various detailed environments by tapping on an area you want travel to, and then tapping on items to take an even closer look. You’re also able to view your inventory and current objectives via the static toolbar at the bottom of the screen. If you find yourself wandering around without a clue, don’t worry, just tap the glowing hint button in the lower right corn of the screen to get back on track. The hint button will regenerate over time, so you can use it over and over again.

Maestro: Music of Death also includes a mixture of hidden objects scenes and re-playable mini-games, a helpful strategy guide, and a global leaderboard via Game Center.

To have a chance at winning one of two in-app promo codes to will unlock the full version of Maestro: Music of Death Collector’s Edition HD, simply retweet this post before 11:59 p.m. PDT tomorrow night (May 2). We will then search the Twitterverse for all of the retweets and randomly choose our lucky winners. The winners will be notified via Twitter, so please be sure to follow us so we can send you your promo code via a direct message.

Non-Twitter users and those of you who want to increase your odds of winning can leave a relevant comment below before 11:59 p.m. PDT tomorrow night to have a chance at winning one of the other three in-app promo codes.

Feel free to participate in the giveaway via either or both methods. Only one entry per person per method is allowed, totaling up to two entries per person if using both.