Tickets can be purchased in advance:
INFOCENTRUM, Hlavní 47, Mariánské Lázně, open 9 AM – 12.30 PM and 1 PM – 6 PM
THEATRE, Třebízského 106, Mariánské Lázně, open Monday – Friday 1 PM – 5 PM
Tickets can be ordered at the e-mail address info@chopinfestival.cz
The e-ticket can be purchased directly at https://www.marianskelazne.cz/kalendar/
Here it is possible to make a reservation, which is valid for 3 days with the possibility of its extension.