In the phonemes section of the document it is said that a the phoneme mnemonics are based on the scheme by Kirshenbaum. A link is given, which, although dead, can be found thanks to archive.org. In this document there are symbols, that does not work with espeak. They are at least (maybe more): & for æ A for ɑ A. for ɒ In the phonemes section of the document there are some additional mnemonics like: [a] trap [aa] bath This is [a] in some accents, [A:] in others. [a#] about This may be [@] or may be...