(Hey, Brahms. Lookin' good. Photo via Art Model)
I recently visited the stunning Musée de Jean Jacques Henner to see its beautiful exhibition "Sensuality and Spirituality" (article forthcoming). While there I browsed their calendar and found that there will be a concert of musicians from the Orchestre de l'Opéra de Paris this coming Thursday, for between 0€ and 7€, depending on your age.
Either way, it's cheap and sure to be a beautiful performance, as the orchestra will be performing selections from Johannes Brahms and Leoš Janácek, like this one:
Concert With Musicians From Orchestre de l'Opéra de Paris
Thursday, 7 March, 7:30pm
Musée Jean Jacques Henner
Métro: M2 to Monceau, M3 to Malesherbes