There wasn’t much doubt that music would be an important part in Amanda Maffei’s life. Growing up in Marblehead, she and her four siblings all took music lessons; her grandfather played banjo and guitar for, among many situations, the original Broadway production of “The Sound of Music,” Kate Smith, and various radio shows; her mom played a bit of piano, but sang all the time, “really strong and really off key, but it was glorious because she loved it, [...]