From Don Cox: "Acoustic recordings were often made with more than one horn.
been able to find a picture of this, or to find out how the sounds were
I've never heard of them being combined. The reason one would record that
way would be to obtain multiple master disks from the same performance. This
same redundancy was SOP for electrical and magnetic tape master recordings
and is standard with today's digital gear.
Bob Olhsson Audio Mastery, Nashville TN
Mastering, Audio for Picture, Mix Evaluation and Quality Control
Over 40 years making people sound better than they ever imagined!