Barry Callaghan Websites:

  • maccann-duet.com

    Concertina Library: Digital Reference Collection for Concertinas

    Concertina Library: Documents for the study of English, Anglo, and Duet concertinas; history, instruction books, sheet music, patents, technical papers,...

  • concertina.com

    Concertina Library: Digital Reference Collection for Concertinas

    Concertina Library: Documents for the study of English, Anglo, and Duet concertinas; history, instruction books, sheet music, patents, technical papers,...