Tunings

[D]  [A]  [D]  [G]  [D]
 [F#] ?   no
Hazey Jane II
 [C]  [G]  [C]  [F]  [C]
 [E]      no              yes
At the Chime of a City Clock    standard        down 1 fret     yes
One of These Things First       standard ?      no
Hazey Jane I
 [D]  [A]  [D]  [G]  [D]
 [F#]     no
Bryter Layter
 [D]  [G]  [D]  [D]  [A]
 [D] ?    3st fret ?
Fly
 [D]  [A]  [D]  [G]  [D]
 [G]      1st fret        yes
Poor Boy                        standard ?      no
Northern Sky
 [D]  [A]  [D]  [G]  [D]
 [F#]     1st fret        yes
Sunday
 [D]  [G]  [D]  [D]  [A]
 [D] ?    1st

Pink Moon
 [D]  [A]  [D]  [G]  [D]
 [F#]     1st fret        yes
Place to Be
 [D]  [A]  [D]  [G]  [A]
 [F#]     3rd fret        yes
Road
 [D]  [G]  [D]  [D]  [A]
 [D]      3rd fret        yes
Which Will
 [C]  [G]  [C]  [F]  [C]
 [E]      no              yes
Horn                            standard        down one
Things Behind the Sun           D G D D A D     6th fret        yes
Know                            standard        no              yes
Parasite
 [D]  [A]  [D]  [G]  [D]
 [F#]     2nd fret        yes
Ride
 [C]  [G]  [C]  [F]  [C]
 [E]      no
Harvest Breed
 [D]  [A]  [D]  [G]  [D]
 [F#]     1st fret        yes
>From the Morning
 [C]  [G]  [C]  [F]  [C]
 [F]      no              yes

Time of No Reply                standard        down 2 frets
I Was Made to Love Magic        D G D G A D ?   no ?
Joey
 [D]  [G]  [D]  [G]  [A]
 [D]      5th fret        yes
Clothes of Sand
 [D]  [G]  [D]  [G]  [A]
 [D]      3rd fret        yes
Mayfair                         standard ?      3rd fret
Been Smoking Too Long           standard        2nd fret
Strange Meeting II              standard        2nd fret
Rider on the Wheel              standard ?      down one ?
Black Eyed Dog                  standard        3rd fret
Hanging on
 [A] Star
 [C]  [G]  [C]  [F]  [C]
 [E]      down 1 fret
Voice From the Mountain         standard        no              yes

NOTES:  This list is nothing more than a best guess at this point.  I
don't no actually know how to play any of the songs that are not marked
as being at Olga.  Some of these are marked with a ? which means I really
am best guessing and some are not which means I'm fairly certain but
could still be wrong.  It's impossible to tell until the song is actually
figured out cos some of the tunings (DADGDF
are so similar to each other.  Hopefully in the future this list can be
corrected and eventually most Drake songs actually figured out (someday!).

6th and 5th strings: 7th fret note (6th string) with open note (5th string)
5th and 4th strings: 5th fret note (5th string) and open note (4th
string) plus the 5th fret harmonic (5th string) and 7th fret harmonic
(4th string)
4th and 3rd strings: 5th fret note (4th string) and open note (3rd
string) plus the 5th and 7th harmonics as in the string before.
3rd and 2nd strings: 7th fret note (3rd string) and 2nd string open note.
2nd and 1st strings: 4th fret note (2nd string) and 1st string open note.

Some double checking techniques:
3rd and 1st strings: the open third string should be the same as the 1st
fret note of the first string.
Obviously, make sure all three C strings sound good together.
The 12th fret harmonic on the 6th string should sound good with the open
note of the second string.
Once you're in CGCFCE, getting to CGCFCF is a piece of cake- just tune
the first string up one, by comparing it with the open third string.