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I must say that is a pretty clean arrangement. I like the quality of all the instruments and how it clearly defines a better version of the RTP. Why didn't the RMXP devs thought of this?
Sounds good. Very nice. One small thing to note: At 10 sec - 20 sec, the rtp midi had a trumpet single note at the end of each measure, but in mp3 it flares and sounds a little distracting.