Quite magnificent and a real treat! Where did you find the score? There's nothing of Sinclair's on IMSLP at the moment.
I was always under the impression that Elgar's 'G.R.S.' was as much about Sinclair's bulldog as the man himself - but hearing that pedal part in the Festal March gives it a whole new dimension.

Thank you dazric for this  ”Quite magnificent and a real treat!”  You have my deepest thanks. I really tried many different registrations to get the most out of this piece.

Your question ”Where did you find the score?”

it's complicated, but I'll try to simplify, and I have a friend and must emphasize, that I once got permission to use his description ( I think I have mentioned this once before, but the information and my many many pieces are of course drowned among the amount of uploads, and many people don't have time to listen and read as they end up far down the pages).

Many of the scores that my friend shares when uploading music in another forum have been courtesy of Dr. John Henderson, Librarian of the Royal School of Church Music. My friend had the privilege of doing the recordings for his book, "They fly, forgotten, as a dream..." dealing with the lost and forgotten church musicians of the Victorian era, and published by the RSCM.

My friend received an email from John with this score attached. He wrote: "An old friend of mine, once assistant organist at Hereford Cathedral was reading our book and noticed that he we had marked George Robertson's Sinclair's Festal March as being lost/unpublished. It is not in any UK libraries but he has a copy and has scanned it for me…….. "rare scores" - well this truly is!!
Published in 1889 or 1898 ?

It seems that Edward Elgar, a close friend of Sinclair, had great admiration for Sinclair's "skillful organ pedalling". This pedal-playing skill appears to be "mentioned" in the 11th variation in Elgar's famous "Enigma Variations".
The variation, "Allegro di molto: is headed G.R.S." and portrays Sinclair's bulldog, Dan, falling into the River Wye, and in Elgar's words: "paddling upstream to find a landing place; and his rejoicing bark on landing. Sinclair said: 'Set that to music.' I did, here it is." The variation also depicts Sinclair's impetuous character and skillful organ pedalling.’

This can be read by everyone in the other forum as well.(Contrebombarde) where is attached the score and his upload.
Thanks to you dazric for asking and many thansk to my friend.

Best wishes,

Stig

Pianoteqenthusiast, Organteqenthusiast, Harpteqenthusiast, Harpsichordteqenthusiast, experimenter and Graf/Grimalditeqenthusiast

Pianoteqenthusiast wrote:

Festal March

This is a grand march, a brilliant piece by G.R. Sinclair, was an English cathedral organist. It's a demanding piece, not an easy piece, especially the pedal part

(Notice:  Listen especially to pedal playing at the end of the piece, 3,23 - 4,04).

t seems that Edward Elgar, a close friend of Sinclair, had great admiration for Sinclair's "skillful organ pedalling”. This pedal-playing skill appears to be "mentioned" in the 11th variation in Elgar's famous "Enigma Variations". The variation, is headed G.R.S." The variation also depicts Sinclair's impetuous character and skillful organ pedalling.

Also notice my registration for the lively glad part 2,18 - 3,07 -  the atmosphere completely changes !!

And this is the exceptionally rare score that was marked lost….It is not in any UK libraries.
I really hope you enjoy this exceptionally rare piece.

https://youtu.be/tO7ANR71aKY

Here is Elgar Enigma variation 11 Allegro Molto that is marked G.R.S  (George Robertson Sinclair)   57 seconds

https://youtu.be/Jp1GC5bNX4E

Best wishes,

Stig

Pianoteqenthusiast, Organteqenthusiast, Harpteqenthusiast, Harpsichordteqenthusiast, experimenter and Graf/Grimalditeqenthusiast

The sound of this is just glorious and the piece you play has had justice served!

Welcome to his forum dubc
I appreciate your taking the time to listen. Thank you dubc for the kind comment. Stay tuned 

Best wishes,

Stig

Pianoteqenthusiast, Organteqenthusiast, Harpteqenthusiast, Harpsichordteqenthusiast, experimenter and Graf/Grimalditeqenthusiast

Festal March

This is a grand march, a brilliant piece by G.R. Sinclair, was an English cathedral organist. It's a demanding piece, not an easy piece, especially the pedal part

(Notice:  Listen especially to pedal playing at the end of the piece, 3,23 - 4,04).

t seems that Edward Elgar, a close friend of Sinclair, had great admiration for Sinclair's "skillful organ pedalling”. This pedal-playing skill appears to be "mentioned" in the 11th variation in Elgar's famous "Enigma Variations". The variation, is headed G.R.S." The variation also depicts Sinclair's impetuous character and skillful organ pedalling.

Also notice my registration for the lively glad part 2,18 - 3,07 -  the atmosphere completely changes !!

And this is the exceptionally rare score that was marked lost….It is not in any UK libraries.
I really hope you enjoy this exceptionally rare piece.

https://youtu.be/tO7ANR71aKY

Here is Elgar Enigma variation 11 Allegro Molto that is marked G.R.S  (George Robertson Sinclair)   57 seconds

https://youtu.be/Jp1GC5bNX4E

Best wishes,

Stig

Pianoteqenthusiast, Organteqenthusiast, Harpteqenthusiast, Harpsichordteqenthusiast, experimenter and Graf/Grimalditeqenthusiast

The sound of this is just glorious and the piece you play has had justice served!

This is a grand march, a brilliant piece by G.R. Sinclair, was an English cathedral organist. It's a demanding piece, not an easy piece, especially the pedal part

(Notice:  Listen especially to pedal playing at the end of the piece, 3,23 - 4,04).

t seems that Edward Elgar, a close friend of Sinclair, had great admiration for Sinclair's "skillful organ pedalling”. This pedal-playing skill appears to be "mentioned" in the 11th variation in Elgar's famous "Enigma Variations". The variation, is headed G.R.S." The variation also depicts Sinclair's impetuous character and skillful organ pedalling.

Also notice my registration for the lively glad part 2,18 - 3,07 -  the atmosphere completely changes !!

And this is the exceptionally rare score that was marked lost….It is not in any UK libraries.
I really hope you enjoy this exceptionally rare piece.

https://youtu.be/tO7ANR71aKY

Here is Elgar Enigma variation 11 Allegro Molto that is marked G.R.S  (George Robertson Sinclair)   57 seconds

https://youtu.be/Jp1GC5bNX4E

Best wishes,

Stig

Pianoteqenthusiast, Organteqenthusiast, Harpteqenthusiast, Harpsichordteqenthusiast, experimenter and Graf/Grimalditeqenthusiast