These are tunes led during the first two years of the Beginners’ Circle, from late 2005 to late 2007. Initially the Beginners’ Circle was a combination mentored slow jam and tune-learning session. Because it evolved to be mainly a tune-teaching session aimed at intermediate players it was renamed the “Tune Builder” in 2015, and in 2019 was again renamed the “Tune Exchange”.
Each tune is available as sheet music in PDF form. Many also have MIDI and/or MP3 audio files you can listen to, usually at a slow speed such as 60 bpm (beats per minute) as well as at a typical playing speed such as 90 or 100 bpm. In some cases, mainly waltzes, the speed listed may be in mpm (measures per minute), e.g. 40 mpm would be 120 bpm in 3/4.
You can get most of the sheet music for the older tunes in one PDF file (~1.2 MB), or get the pages individually below.