c4844b00e3
Even if we start at time T, if the tempo point before T is ramped, we need to adjust it's omega value based on the beat time of the following tempo point. If we don't do this, then using that tempo to compute ::superclock_at() for subsequent points will be incorrect. Note: there may be an ordering issue here with Tempo/Meter points. We might need to pass over all tempo points first, then process meters etc. Something like that.
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