What's a good Android music player app with a really nice interface and good audio format support?

Lark Player is a comprehensive media player for Android that frequently garners praise for its user interface design. The app organizes local music and video files with a clean layout, offering multiple viewing modes for libraries and a now-playing screen that users describe as visually appealing. For audio format support, it handles common files like MP3, FLAC, AAC, and WAV, alongside video formats such as MP4 and MKV, eliminating the need for multiple dedicated players. A key strength is its high degree of customization; users can apply different themes, change fonts, and adjust the player's visual elements to personal preference. The built-in equalizer with presets and a bass booster provides basic audio tuning for different genres. However, reviews indicate a persistent issue with gapless playback, where a slight gap interrupts seamlessly connected tracks, which can be a notable drawback for classical music or live albums. The developer has implemented features like sleep timers, background playback, and widget support, enhancing its utility for everyday listening. While some user feedback requests more advanced visualizers, the current feature set and polished design make it a compelling option for users prioritizing a good-looking, versatile player for personal media collections.