audio and audio tracks I have a program in which audio tracks that you put can be partitioned into pieces. the audio tracks above is audio files, however, can I use audio to replace audio tracks in the sentence above? I wonder if audio is abstract just like the word architure, which is not an object but a concept? As a result, you cannot say audio I put into the program can be divided into pieces, but you can say audio in the program can be diveded into pieces？ Thank you!!