Bip39 seed to private key https://andersonehmh757.timeforchangecounselling.com/getting-your-first-bip39-passphrase-idea Even though it makes use of BIP32 approach you can still import BIP39 seeds into Electrum wallet. Also other than BIp32 There may be BIP44 Variation which some wallet use to the generation of seeds. He is usually the creator of by far the https://travialist.com/story11163920/bip39-date-not-known-factual-statements-about-bip39-mnemonic-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw