I was just wondering why you picked 'Grand Slam'. Is it because you have problems finding the more unusual tunes. Most of the tunes Benny Goodmanb recorded are jazz standards and readilly available in BIAB format, particularly from that other BB forum's archive:
http://tech.groups.yahoo.com/group/Band-In-A-Box-Files/Maybe this list of BG recordings will help:
Benny Goodman – Trio, Quartet and Sextet
June 13th 1928
Clarinetitis C6
October 22nd 1931
Farewell Blues C6
July 13th 1935
After You,ve Gone C2
Body And Soul C2
Who C2
Someday Sweetheart C2
April 24th 1936
China Boy C2
More Than You Know C2
All My Life C2
April 27th 1936
Oh, Lady Be Good C2
Nobody’s Sweetheart C2
Too Good To Be True C2
August 21st 1936
Moonglow C2
August 26th 1936
Dinah C2
Exactly Like You C2
November 18th 1936
Sweet Sue C2
My Melancholy Baby C2
December 2nd 1936
Tiger Rag C2
Stompin’ At The Savoy C2
Whispering C2
February 3rd 1937
Ida, Sweet As Apple cider C2
Tea For Two C2
Runnin’ Wild C2
July 30th 1937
Avalon T3
21st December 1937
Bei Mir Bist Du Schon Part 1 C6
29th December 1937
Bei Mir Bist Du Schon Part 2 C6
March 25th 1938
Blues In My Flat T3
Sugar T3
December 15th 1938
Bach Goes To Town C6
December 29th 1938
Pick-a-Rib Part 1, Part 2 T3
December 20th 1939
Shivers T3
April 16th 1940
Boy Meets Goy (Grand Slam) T3
June 20th 1940
Six Appeal T3
January 15th 1941
On The Alamo T3
Gone With The Draft? C6
February 1942
The World Is Waiting For The Sunrise T3
Sept 9th 1948
Stealin’ Apples T3
April 14th 1949
Bedlam T3
Blue Lou T3
November 24th 1950
Lullaby Of The Leaves T4
Temptation Rag T4
June 13th 1951
Farewell Blues T4
July 29th 1952
Between The Devil And The Deep Blue Sea T4
I’ll Never Be The Same T4
Bye Bye Blues T4
July 30th 1952
How Am I To Know T4
I’ve Got A Feeling I’m Falling T4
Under A Blanket Of Blue T4
October 22nd 1952
East Of The Sun T4
Four Or Five Times T4
March 13th 1972
I Want To Be Happy T1
Where Or When T1
The Sheik Of Araby T1
A Smooth One T1
It Had To Be You T1
Flying Home T1
January 17th 1978
Moonglow T1
Oh, Lady Be Good T1
Roll ‘Em T1
Those are just the ones I have and most of them are available from the archive.