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 25, 1971

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 	Fillmore East
Location 	New York, NY
Date 	4/25/71 - Sunday 	posters 	tickets, passes & laminates
One 	Truckin' ;
Loser ;
Hard To Handle ;
Me And Bobby McGee ;
Cold Rain And Snow ;
The Rub ;
Playing In The Band ;
Friend Of The Devil ;
China Cat Sunflower [4:49] >
I Know You Rider [5:16] ;
Casey Jones [5:23]
Two 	Morning Dew [9:56] ;
Beat It On Down The Line ;
Next Time You See Me ;
Bertha [5:44] ;
Sugar Magnolia (1) [5:47] ;
I Second That Emotion [3:17#] ;
Good Lovin' (2) [17:38] ;
Sing Me Back Home [8:#26] ;
I Dream Of Jeannie Tuning ;
Spanish Jam Tuning [1:08] >
Not Fade Away [3:#18] >
Goin' Down The Road Feeling Bad [7:28] >
Not Fade Away [2:09]
Encore 	Uncle John's Band
Comments 	(1) {Sugar Magnolia [4:40] pause [0:02] Sunshine Daydream [1:05]} * (2) {Good Lovin' [1:44] > Drums [4:07] > Good Lovin' [11:47]} this list based on a DNC posting by David Lemieux, which seemed to clear up much of the confusion about this show. This list used to include a King Bee, the Rub and Lovelight, from a SB 30 tape, but they have been moved to a separate ??/??/71 entry. This list also used to include an Uncle John's Band encore, but it has been removed since it was not on David Lemieux's list, and it did not have timings from the tape. Jim Powell says ``These lists [the ones with timings] derive from the [90] minutes of SBD now circulating from this show. These tapes are plainly incomplete and there was also a NRPS set. The tapes circulate in [two] pieces: a) a 45-minute side containing China Cat through Casey Jones and Morning Dew through Second that Emotion; b) a 45-minute side containing Good Lovin through Uncle John [...]. China Cat through Casey Jones is the 1st set conclusion. [ ... ] After Bertha there is a longish pause during which, among other shenanigans, Phil announces "Alright all you wise guys write your requests on your girlfriends' bosoms and send 'em up here." The Set 2 list looks more nearly complete. The tape of Second that Emotion breaks off [...].'' thayer Jennings says "Second that Emotion cuts off with a significant portion missing. Splice in Sing Me Back Home, with perhaps 8 seconds missing (accounted for in timing). Splice in Not Fade Away (#1), with approximately 4 seconds missing (accounted for in timing)."
Recordings 	90 SBD.
Download/Listen Sources

    SBD>>MR
    This remaster uses Charlie Miller's gd71-04-25.sb
    SBD -> Master Reel -> CD
    SBD -> ? -> C -> CDR
    Soundboard Partial - End of Set 2 Only

********** 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
    47:05.435     813725222 B   cxx   --   ---xx   flac  0.5927  gd1971-04-25-2A.flac
    49:50.548     861277808 B   cxx   --   ---xx   flac  0.5970  gd1971-04-25-2B.flac
    46:33.169     804432680 B   cxx   --   ---xx   flac  0.5742  gd1971-04-25-alt2.flac
   143:29.151    2479435710 B                            0.5882  (3 files)

gd1971-04-25-2A.flac:86c33eabfdd539b43f7aa8c1570ad092
gd1971-04-25-2B.flac:fef3e09834422b79c5169cf90cc9898f
gd1971-04-25-alt2.flac:4819a00b4c2c7f365ace6d6a7b48ca9a