Hi, I made an simple video to present my music app. I need help to correct the text... (1st part) I put the link of this video here: http://youtu.be/nliiRul9HZI and the text below: In this video, i am going to talk about this iphone music app which is called AB jukebox. AB is the abbreviation of AcousticBrainz which is a music information database, it stores music feature information such as emotion, timbre and rhythm characteristics of songs. And It's an open database, and everyone can upload the music information calculated by a software that can be found at the acousticbrainz website. Features: This app can match the songs in our iphone music library with acousticbrainz database and automatically download their feature information. It represents the songs as the points on this pad. By default, the horizontal axis is the emotion sad-happy. So the songs on the left side of this pad is more sad than the songs on the right side. And the vertical axis is rigid and relaxed. In a similar way, the songs on the lower side is more relaxed than the songs on the top side. We could change features on this pad by clicking these two buttons on the lower-right side. Now we change the horizontal axis to dark-bright and vertical axis to voice-instrumental. Now the songs are re-organised on this pad. Play songs : It's easy to play a single song, we just need to tap on a song point on this pad, then a small window jumps out. It shows us the song title and artist name on top, and we click the play button, it begins to play this song. Then we click this button again, it stops playing. To generate a playlist, we can draw lines or circles or any other drawing patterns on this pad. Now I draw a line, and the songs near this line are selected as our playlist. We can click the Playlist button to show this playlist. If I click this play button right now, this program is going to play our playlist in the drawing direction. If we want to play a particular song, we can go into the playlist, then select the song that we want to play. Return to the feature pad. We jumped directly to this song. To de-select this playlist, we double tap on the blank area of this pad. We can also draw a circle on the pad, and then the songs inside this circle are selected into playlist.