How to pronounce h in English

"the eighth letter of the English alphabet is classed among the consonants and is formed with the mouth organs in the same position as that of the succeeding vowel. It is used with certain consonants to form digraphs representing sounds which are not found in the alphabet as sh th / as in shall thing /ine (for zh see /274); also to modify the sounds of some other letters as when placed after c and p with the former of which it represents a compound sound like that of tsh

"The seventh degree in the diatonic scale being used by the Germans for B natural. See B."