His Le Bal Chez Sylvie had its premier in 1945 with the Suisse Romande, conducted by Ernest Ansermet. It’s typical of the work of Wissmer, imaginative and highly expressive. I am not sure there is a commercial recording of this work. There is currently a 5-CD box set of Wissmer Symphonies currently available from Naxos. So it would be safe to say the work of Pierre Wissmer hasn’t fallen into neglect, as so many others have.
But this work still has yet to see a commercial recording. And maybe that might change at some point. In the meantime, here is what may be the only recording of Le Bal Chez Sylvie, performed by Orchestre de la Suisse Romande under Edmond Appia, and recorded by Swiss Radio at their Geneva studios.