I am currently at the stage of tuning the reeds for a new Anglo concertina. I have been reading, on this forum and elsewhere, on the various meantone tunings peope are using, especially on Engish concertina. I have the data I need for ET, 1/4 Comma and 1/5 Comma cent offsets, and I would like to know whether they offer any advantage in group playing.  The tuner I use has the capabity to play chords and instantly switch to any other tuning. To my ear 1/5 Comma sounds much more harmonious tha