when setting up a new cartridge, after test records, I use those 2 tracks to make the final anti-skate adjustment
When you get it right the left and right guitars, even though they are different body types, and different strings, sound balanced, center guitar comes alive, and live audience sounds equal l/r.
If ’off’ you strain to hear it ’right’ and don’t enjoy it nearly as much as when you have the confidence to know it’s balanced. Then, you become involved, immersed it the compositions and skills.
I have it on CD, Vinyl is better on a darn good, well set up TT.
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remote balance.
I found, and I think you would truly enjoy and benefit from remote balance.
MANY tracks (already in your collection) are slightly off balance, a slight tweak can make a large difference, imaging, everything ’opens up’, there is a lot of hidden magic that is unappreciated if off just a bit.
I used to walk forward and back, a real PITA. I got and love this Remote Line Controller.
https://www.ebay.com/itm/Chase-Technologies-RLC-1-REMOTE-LINE-CONTROLLER-Complete-In-Original-Box-NEW/333463145628?hash=item4da3f3cc9c:g:bV8AAOSwEDFdpQFT
Absolutely No Noise is True. s/n 105db. I and my audiophile friends, pre-disposed to simple signal path, can never tell if in line or not.
Nicely, it remembers last input used, and last volume level. Several other features/benefits but it’s primary use is to tweak balance.
My friend moved his wonderful system to a space with left speaker near a wall, other side open. Never gonna be perfect, but his solves the problem to a great extent.
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phase reversal
you may want to follow this phase reversal thread
https://forum.audiogon.com/discussions/how-to-tell-if-lp-is-recorded-with-phase-reversed