It's also really valuable to learn how to recognize chord progressions relatively. I had an ear training class with a bunch of people with absolute pitch and th

It's also really valuable to learn how to recognize chord progressions relatively. I had an ear training class with a bunch of people with absolute pitch and they were way slower than me at transcribing chord progressions (without voicing). They had to listen for each line and mentally reconstruct what the chord was using theory while I had an intuitive knowledge of a I-IV-V-I progression versus I-ii-V-I. Being able to recognize chord progressions saves a lot of work in transcription because unless the piece is doing something weird, you can reconstruct the voicing or an equivalent voicing pretty easily. For the weird stuff, you just need to pick out a few elements and even then the rest of it can usually be inferred.