Applications and software for Android: Audio

Winamp
Audiofree
Customize and play various audio formats with skin options and add-ons in this multimedia player.

Guitar Pro
AudioMusic Learningpaid
This software assists in creating and learning music for guitar and other string instruments with multitrack support, a tuner, diagram generator, metronome, and high-quality sound playback.

Spotify
Audiofree
Stream and organize various genres of music, generate playlists, share with others, and enjoy exclusive features such as podcasts and radio programs.

KaraFun
Audiofree
Create and enjoy karaoke sessions with friends, supporting various musical formats, playlists, background images and text effects, with an integrated editing system and simple user interface.

Shazam
Audiofree
Identifies songs by analyzing audio and allows users to preview, add to playlists, purchase, view popular tracks and share via social media.