Billings, Belcher and Read were the beginning of a chain of tunebook compilers that grew increasingly secular, as the art of psalmody lost its religious importance. Other Massachusetts-born compilers followed in their footsteps, beginning with Jeremiah Ingalls of Newbury, Vermont. Their songs were generally fugues, and were disapproved of by religious authorities. Andrew Law was an important compiler as well; he felt that American music should be more like European, and is best known for organizing singing schools and tunebooks. In addition, he composed several songs of note, and invented a kind of musical notation called shape note.