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1. The software MP3 Speed Changer has 30 days free trial. It is enough. There are lots of similar software on internet.
2. BPM (beat per minute) tool on http://www.all8.com/tools/bpm.htm
1. The software MP3 Speed Changer has 30 days free trial. It is enough. There are lots of similar software on internet.
2. BPM (beat per minute) tool on http://www.all8.com/tools/bpm.htm