PHIPPSBURG — The celebrated American roots music duo Martin Grosswendt and Susanne Salem-Schatz will perform in concert at the Phippsburg Congregational Church at 7:30 p.m. Friday.

Called “one of America’s great natural musical resources” by Robert Resnik of Vermont Public Radio, Grosswendt is an internationally-known interpreter of pre-war blues and other southern roots music. His performances with Susanne Salem-Schatz encompass the breadth and depth of American roots music, from classic Delta and East Coast blues to early country music to Creole and Cajun music.

Salem-Schatz is a veteran of the Boston roots music scene. A life-long singer, she enjoys slipping seamlessly from soulful blues to sassy honky-tonk.

The two played and sang together for three years in Honky Tonk Masquerade, a honky tonk/western swing band, before striking out as an acoustic duo two years ago. Their first CD together, “Old Songs, New Hats,” was released late in 2015.

Admission at the door is $15; students $8; $12 advance tickets available at Children under eight are admitted free. Refreshments will be served. Doors open at 7.

The historic Phippsburg Congregational Church is located at 10 Church Lane off Parker Head Road. For more information, call 389-1770.