The Bankia Symphony Orchestra String Quartet – under the artistic and musical direction of José Sanchís – fills Madrid’s Royal Botanical Garden with music:

https://www.docenotas.com/146344/la-musica-clasica-llega-al-botanico-la-mano-la-orquesta-sinfonica-bankia-programa-musica-jardin/

More info and link to ticket purchase: http://www.rjb.csic.es/jardinbotanico/jardin/index.php?Cab=4&len=es&Pag=724