concertina.net – Concertina discussion forum, plus history, buyers guide, and a lot more.
concertina.org – The International Concertina Association
www.concertina.com – a huge amount of Concertina research & articles.
horniman.ac.uk – the Horniman Museum, London, which includes a concertina collection
Salvation Army Tutor – the Salvation Army Tutor for the Triumph Concertina, 1938 (PDF).
www.HobGoblin.com – music store with a variety of instruments, sometimes they have duets.
BarleyCorn Concertinas – music store for vintage concertinas, Barleycorn often has Crane duets.
cranedrivinmusic.com – the site of Andrew McKay and Carole Etherton, Crane players & singers.
musicfinders.co.uk/Sea/sea.htm – the website of Charlotte & Spong
Crane player on YouTube – some very nice playing by Robert Dawson, on his 72 button Crane.
Paul Mccann plays Crane Duet (YouTube).
pghardy.net/concertina/kilve/kilve200710/ – includes two recordings of Paul McCann playing his Crane.
youtube.com/user/mcjlina – Marien Lina’s page on YouTube, which includes a number of Crane recordings.
concertina.org/sound-library-old/son-of-readers-tapes/ – several recordings by Jean Megly
regalzonophone.com/Albums/Blue-Regal-Zonophone-78s-MF260-MF279 – includes MF269 & MF292, recordings by Brigadier Archie Burgess of the Salvation Army.
https://soundcloud.com/rac-13 Recordings by Ruediger Asche from Germany