OTORAKU -音・楽- is a free Android app developed by USEN Corp. that allows you to create and manage playlists for your business' background music. With a wide selection of music from both Japanese and international music labels, you can create a unique and personalized playlist that fits your business' concept.

One of the best features of this app is the ability to create your own playlist from scratch or choose from existing playlists. You can also change the order of the songs, add specific songs at specific times, and even set a timer to switch between playlists automatically. The app also includes "surprise playback" and other useful features that can make your business' background music more exciting and dynamic.

OTORAKU -音・楽- is a great option for businesses who want to use music as a way to express their brand identity, but are worried about copyright issues. The app has already taken care of the necessary copyright processing, so you can use it worry-free. It's a subscription-based service, so the more you use it, the more cost-effective it becomes.

Please note that this app is intended for business use only and not for personal use.