Here you can find links for the most important summer festivals!
Festival Pucciniano at Torre del Lago Puccini (the town where Puccini lived), operas: puccinifestival.it/website/allegati/Torre_de…
Festival La Versiliana, in Marina di Pietrasanta; theatre, musical and dance (if you don't undersand Italian language, there are some interesting dance performances!) laversilianafestival.it/…202012.pdf
Enjoy your summer!!!