Just getting some preliminary things in here before I forget them.

VOWELS
ä [as in ask]
e [as in deck]
j [as in machine]
i [as in bit]
o/a [as in rom]
u [as in rune]
y [as in German Physik]
r [as in spider (American)]

DIPHTHONGS
ey [as in ocean (British)]
au/ou [as in German laut]
äu [as in how]
ej [as in bay]
aj [as in high]
oj [as in joy]
uj [as in we]
yj [y+j]
äj [ä+j]
je [as in yes]
ja [as in yacht]
jo [as in yodel]
ju [as in you]
jy [j+y]
jä [j+ä]

CONSONANTS
b/p
g/k
d/t
z/s
v/f
l
r
u (w)
j (y)
m
n
h

CONSONANT CLUSTERS
sj [as in shame]
tj [as in chair]
zj [as in treasure]
dj [as in jump]
kj [as in German Bach]
gj [voiced form of kj]