The largest accordion ensemble consisted of 1,137 participants at the 2011 Panonika Harmonika Festival in Cerklje ob Krki, in Slovenia on 8 August 2011.
The accordion ensemble was led and conducted by Martin Tezak.
The largest accordion ensemble consisted of 1,137 participants at the 2011 Panonika Harmonika Festival in Cerklje ob Krki, in Slovenia on 8 August 2011.
The accordion ensemble was led and conducted by Martin Tezak.