Just saw I owed an answer to this - Babylon Sisters and Hey Nineteen. For me there is enough space between instruments that you can really focus on the atributes of each. Also, near the start of BabSis there is a single striking of a cymbal/hi-hat, get to know that sound, as it will change with system changes, a great way to quickly tell how accurate your system reproduces upper registers.
Gaucho
Steely Dan | Format: Vinyl
A friend of Eleazar's recently pointed out the virtues of this lp as a test record.
I have had this LP since it was first released and never really thought of using it as a test record. Are you using a particular track to highlight any specific thing?