Vowels

https://deutschwunder.com/blog/german-pronunciation-rules-cheat-sheet

Long vowels
a  ah (as in "father")
  Vater  FAH-ter (father)👨🏻
  Bahn  (train) 🚊

e  ay (as in "say")
  See    zay (lake)
  Leben  LAY-ben (life)
  sehen  (to see)
  mehr  (more)

i  ee (as in "see")
  Liebe  LEE-buh  (love)

o  oh (as in "go")
  Brot	(bread)🍞
  Boot	(boat) 🚤
  Sohn (son)

u  oo (as in "moon")
  Schule  SHOO-luh	(school)

Short vowels
A   Mann (man)	"a" as in "must“   https://en.wiktionary.org/wiki/Mann#Pronunciation_3
E   Bett 🛏️ (bed)	"e" as in "bet"   https://en.wiktionary.org/wiki/Bett#Pronunciation_3
I   Mitte (middle)	"i" as in "bit"
O   Sonne 🌞(sun)	"o" as in "lot"   https://en.wiktionary.org/wiki/Sonne#Pronunciation
U   Mutter (mother)	"oo" as in "foot"  https://en.wiktionary.org/wiki/Mutter#Pronunciation
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A vowel is usually long when:

It is followed by a single consonant: Tal (tahl, valley), Mut (moot, courage)
It is doubled: Haar (hahr, hair), See (zay, lake)
It is followed by an "h": Bahn (bahn, train), Mehl (mayl, flour)

Long vowel
O  Boot	/boːt/	boat 🚤  https://www.collinsdictionary.com/dictionary/german-english/boot
E  mehr   /meːɐ/  more   https://en.wiktionary.org/wiki/mehr#Pronunciation
E  sehen	/ˈzeːən/	to see
I  bieten /ˈbiːtən/ to offer (long i) https://en.wiktionary.org/wiki/bieten#Pronunciation_2
U  Schule  /ˈʃuːlə/  school 🏫
Long vowels
A	Vater (father)	"ah" as in "father"  https://en.wiktionary.org/wiki/Vater#Pronunciation
E	See (lake)	"ay" as in "say"   https://en.wiktionary.org/wiki/See#Pronunciation_3
I	        	"ee" as in "see"
O	Sohn (son)	"oh" as in "so"  https://en.wiktionary.org/wiki/Sohn#Pronunciation
U	Schule (school)	"oo" as in "moon"

a	ah (as in "father")	Vater	FAH-ter	father
e	ay (as in "say")	Leben	LAY-ben	life
i	ee (as in "see")	Liebe	LEE-buh	love
o	oh (as in "go")	Brot	broht	bread
u	oo (as in "moon")	Schule	SHOO-luh	school


zehn (tsayn, ten) 🔟

viel (feel, much)
Biene (BEE-nuh, bee)🐝
Liebe	LEE-buh	love 🩷