Bip39-j-90-4g c http://www.video-bookmark.com/user/tucanewhmt While it utilizes BIP32 technique you'll be able to continue to import BIP39 seeds into Electrum wallet. Also aside from BIp32 There is certainly BIP44 Variation which some wallet use for that generation of seeds. It's simple — if you do not be concerned about copyright inheritance, https://www.youtube.com/channel/UCUpxfyTJ0fb78SQ55hU6OCw