In 2018 Jeff Knudsen donated his 5000+ cassette tape collection to www.shnflac.net.
The ensuing GEMS Lossless Legs production is releasing each of these tapes as raw transfers in digital format, one file per cassette side.

Transfer info: Nakamichi CR-7A (Rebuilt by ESL August 2019) -> Sound Devices MixPre-3M
Transfer by: Jay Haines
Date on label: April 5, 1971

NOTE: Yes, this is the second show in the knudsen collection dated 4/5/71


Here's what deadlists.com says occurred on this date and the sources in circulation at the time of this seed.
This release may or may not be one of these sources.
This entry is included as an aid to future researchers.
As always, listen, look at the pictures and judge for yourself.

Band 	Grateful Dead
Venue 	Manhattan Center
Location 	New York, NY
Date 	4/5/71 - Monday 	posters 	tickets, passes & laminates
One 	Cold Rain And Snow [5:59] ;
Me And Bobby McGee [5:54] ;
The Rub [4:14] ;
Loser [6:27] ;
Playing In The Band [4:35] ;
Big Railroad Blues [3:46] ;
Me And My Uncle [3:09] ;
Big Boss Man [5:00] ;
China Cat Sunflower [5:34] >
I Know You Rider [4:39] ;
Casey Jones [5:00]
Two 	Truckin' >
Drums >
The Other One >
Wharf Rat ;
Sugar Magnolia ;
I'm A King Bee ;
Bertha ;
Deal ;
Sing Me Back Home ;
Not Fade Away [4:18] >
Goin' Down The Road Feeling Bad [5:23] >
Jam [1:41] >
Turn On Your Love Light [22:59]
Comments
Recordings 	SBD 180
Master recording source(s): 7inch Master Reels@7.5ips 1/2trk
Download/Listen Sources

    aud of unknown origin lineage
    7" two track reel @ 7 1/2 ips > PCM501ES (beta) P
    SBD -> Master Reel -> PCM -> Dat (44.1k)
    SBD -> Master Reel -> PCM -> Dat (44.1k)
    Soundboard
    Soundboard

Contributors 	paleo550@philly.infi.net (Gordon Sharpless); johno@paul.rutgers.edu (John Oleynick); shrive@roanoke.infi.net (Ryan Shriver)
Caretaker 	John Oleynick email update


********** The GEMS Knudsen Tape Project  **********

In 2018, Jeff Knudsen bestowed his tape collection to the AZ GEMS
team for distribution and archiving. We have cherry picked some shows
and released them but have only scratched the surface. The process
of producing a complete and accurate mastered file set is time consuming:
select the show, compare to existing sources, adjust the tape deck,
transfer to digital, speed correct, master, aquire the source ID and
torrent. We realized we would never release most of collection using this
method.

As long as music is on tapes in a closet, it is useless. If it circulates
it is preserved for others and for the future. Rather than go through
the whole file set creation process, we transfer each tape or tape
side as a single digital file. A two tape concert consists either two big
audio files, 1 for each tape or 4 big audio files, one for each side of
the two cassettes.  We transfer professionally using the best gear and
a high quality Analog to Digital device. The Azimuth and Dolby settings
are correct. We release these files for everyone. We do not evaluate
the quality of the source, master it, or track it.

The Knudsen Tape Project is about sharing the tapes.

In each numbered release, along with the digital music files, we
include a photo of the tapes. The goal is to release as many of the
tapes as possible to the website www.shnflac.net.

We think the fruits of this project will become more interesting as time
passes. We believe that access to raw, properly transferred audio will
be of value to both present and future listeners, researchers and others.
Audio mastering technology is moving at breakneck speed. We can only imagine
the future technology that will be available. Having access to unmastered sources
could be invaluable.

HISTORY

The collection was started with a box of tapes Jeff Knudsen recieved
from his friend Dick Latvala in the late 70's. Dick was just a regular
guy in Pahoa, Hawaii and had not yet begun officially working with the
Greatful Dead. Over time, Jeff's collection grew. At that time, tapes were
currency and Jeff had gold. His collection increased to about 5000 coveted
tapes, via mail trades and all night copy-athons. Jeff shared them freely
and widely. If you had a soundboard tape in your collection years ago there
is a good chance it came from Jeff Knudsen.

WHAT CAN I DO WITH IT ?

Every release in this project is from a band that allows it's fans
to trade music non-commercially. We neither add or take away from that
permission. We only ask that you credit the Knudsen Tape Project if you
use the material. We ask nothing else of you and you do not need
to ask permission to use them. Since we ask only for source credit, we would
rather not hear complaints. Take what you need and leave the rest.

LINEAGE QUESTIONS

The notion of documenting lineage is a modern one, or simply one Jeff
did not entertain. We do not have lineage information on most of these
tapes. Any information we have will be in the photo of the tapes.
Some of the tapes sound absolutely fantastic. Others may remind
you of a tape you had long ago.

Now the rest is up to the community, with whom we have absolute faith
in the ability to discern.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Contact shnflac@gmail.com if you need more information.


SHNTOOL OUTPUT

    length     expanded size    cdr  WAVE problems  fmt   ratio  filename
    45:15.755     782137442 B   cxx   --   ---xx   flac  0.6665  gd1971-04-05-1A.flac
    43:22.462     749509178 B   cxx   --   ---xx   flac  0.6689  gd1971-04-05-1B.flac
    50:34.496     873934904 B   cxx   --   ---xx   flac  0.6702  gd1971-04-05-2A.flac
    43:56.017     759172874 B   cxx   --   ---xx   flac  0.6648  gd1971-04-05-2B.flac
   183:08.730    3164754398 B                            0.6677  (4 files)

gd1971-04-05-1A.flac:2a9718f6eab43a4620afe9352a6f75e4
gd1971-04-05-1B.flac:e0e967562f8b647512fa7244d809f7c9
gd1971-04-05-2A.flac:1f53866fa64f120237a91a33492878c7
gd1971-04-05-2B.flac:e1602366dda8e4b5b4b3cec4e83ec73a

e8cf5a1f158c371b6c9f384f8e922268 *gd1971-04-05-1A.flac
187d328049622e90b48644ea1c702e47 *gd1971-04-05-1B.flac
656fae23d8407b99f29352ee36ef9ca5 *gd1971-04-05-2A.flac
c01d3bd5ccbcd74be7c64420d49c1fa2 *gd1971-04-05-2B.flac