http://api.soundcloud.com/users/504871440/?client_id=915908f3466530d0f70ca198eac4288f{"errors":[{"error_message":"404 - Not Found"}]}http://api.soundcloud.com/users/504871440/tracks?client_id=915908f3466530d0f70ca198eac4288f&limit=20&offset=0&linked_partitioning=0{"error":"Match failed"} mp3 track soundcloud - MP3HAYNHAT.COM