Blank, Printable staff paper: https://www.blanksheetmusic.net/#g
GIA Publications web page: https://www.giamusic.com/music_education/johnfeierabend-main-folksongs.cfm
Students in Kindergarten, First, and Second grades are learning Folk Songs in music class. You can find MP3 downloads of the stories, or purchase the books to sing at home!
Chrome Music Lab: https://musiclab.chromeexperiments.com/