Bach: Fugue in G Minor, BWV 542 "Great"
This fugue is nicknamed the "Great" Fugue in G Minor to differentiate it from the "Little" Fugue in G Minor. It may originally have been improvised in 1720 and is originally for organ, of course; I recommend a YouTube video by organist Cameron Carpenter as the inspiration for this arrangement.
All parts are challenging, most with extended passages in treble clef. Score and 4 parts.
This is a downloadable arrangement. Buy it now and you can download the PDF directly to your computer. To receive printed folio copies (extra charge for postage), ask for them in the comments section of the order.