When you multiclass 2 spellcasting classes does your focus work for all spells?

@JeremyECrawford when you multiclass 2 spellcasting classes does your focus work for all spells (holy symbol for your bard spells)

— Matt Petruzzelli (@mpetruzz) January 13, 2017

Check out the multiclass rules (PH, 164), which have a section on spellcasting. It talks about spellcasting focuses, spell slots, etc. #DnD https://t.co/YMDmRf3dOg

— Jeremy Crawford (@JeremyECrawford) January 13, 2017