With Mp3 Editor you’ll not need a PC at all, you can extract refrain from the track and create music ring tones directly on your mobile phone in a few simple steps. Even cooler, you can mix different tones (bitrate has to be the same) to get some cool effects.
Use key ’5′ to set your start and finnish points when cutting mp3 tracks. When joining tracks check the bitrate’s are the same.
Mp3 Editor v0.3
*it requires Python and must install everything on phone memory, not on memory card