dsheng3

In case somebody else has the same problem again (since it took me quite some to figure out) You need to set/copy the ticks_per_beat for your Midi-File: ```py mid_in =...

Yes, I also have some tempo problems. Its is like @dbolton said. It is now documented https://mido.readthedocs.io/en/latest/midi_files.html#about-the-time-attribute One is ticks and one is seconds. I didn't try it myself, but...