Classic Android Music Player Development

I'm looking for an experienced Android developer to create a classic style music player for me. This player will need to function in the foreground and support offline playback.

Key requirements:
- Design a user-friendly, classic-style UI.
- Implement offline playback functionality.

Ideal skills and experience:
- Proficiency in Android development.
- Experience with UI/UX design, particularly classic styles.
- Prior work with music player apps is a plus.