So recalls Felix Heltmann of then-West Berlin, in a comment over at the BBC, “and without question I just started pounding away at the Wall. I was so excited that I got exhausted after some time and I gave the hammer to my other mate who started hammering away too. What a night…”

To celebrate that night on this night, NYers might want to head to Le Poisson Rouge, where admirable pianist Heather O’Donnell will be in town — she herself has lived in Germany now for some years — to give a commemorative concert thanks to the Wordless Music series. On the bill will be Walter Zimmermann‘s the missing nail (at the river), for piano & toy-piano, and Wüstenwanderung; Oliver Schneller‘s Five Imaginary Spaces and Tomorrow…, both for for piano & electronics; and Charles IvesThree Quarter-Tone Pieces for Two Pianos (new version for piano & electronics).

Heather’s also taking her show on the road the next few days: tomorrow the 10th she’ll be at An die Musik in Baltimore with music of Schneller, Ives and Schumann; the 12th she’ll repeat that recital at the Goethe Institut in Boston; and the 15th she’s at the Ethical Society in Philadelphia doing Zimmermann, Ives and Schumann.