Now I met such a demand, support play. Mid file, interface display the corresponding staff opern, can support control the beat rate of music at the same time, also supports a single segment of the audio looping,
Should be how to implement such a demand, I have no idea, at ordinary times is to develop some simple applications, also did not develop audio and video related
Searched the data, saying is mid file can directly analyze the staff (don't know how to achieve, what is a library support)
Can understand the great spirit of slightly to give directions

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Similar to the bench the music APP