Why is tape head azimuth adjustment even a thing? wouldn't it be better to just have it fixed to the correct position? I'm sure there is something I'm missing/don't understand but this
Cassette Tape Head
File:Tape head azimuth error 4 (HF losses).svg - Wikimedia Commons
Sony TC-330 Tape Path Alignment
Azimuth and Head Adjustment terminology - YouTube
Azimuth Head Alignment Tape from Retrogames
Endino's Cassette Transfer How-To
Cassette Deck Tape Head Azimuth Adjustment, Simple Method, Heads Alignment, Play & Record HiFi AUDIO - YouTube