The tempo guessing algorithm analyzes the sample filename for tempo figures,
checking if the initial guess is off by a factor 0.5 or 2.0. The ”normal” BPM range
the Octatrack uses to make its initial BPM guess is 85 BPM-170 BPM. If you have
loops with tempos outside this range, it might be a good idea to put the BPM value
in the filename. Typically, a 70 BPM loop is initially loaded as 140 BPM loop, but if
the number 70 is found anywhere in the filename, the octatrack will use 70 BPM
instead. Similarly, if 280 is found in the filename, the BPM of the sample will be 280.
You don’t have that problem with Recorders + Flex.