Hi Jeff,
I, too, started (a year and a half ago) on the Rochelle. I rented one from Button Box for 3 months, then found and purchased a wonderful Tedrow on ebay... what a jewel! The tutor arriving with the
Rochelle was great... then I worked through the Mick Bramich book, which was also great.
Last April, I responded to a query (posted on this website) looking for people (beginners) who would be interested in "testing/trying out" various chapters of this tutor as it was being written/edited. I had a wonderful and enlightening time reading the text, learning the tunes and giving feedback to the author. The book was published this past December ... and I want to recommend it to you now, as you begin your concertina journey. It is perhaps best used after the Rochelle tutor and before Mick's book. It's called The Concertina Diaries: Discovering the language of the concertina in Irish music, by Heather Greer (Co. Galway, Ireland). It is available at:
www.IrishTunebook.com or www.DustyBanjos.com
Happy squeezing!
Kay