The Spanish musical term 'tutti' comes directly from the Italian word 'tutti' meaning 'all' or 'everyone'. In musical contexts, it refers to a passage that should be performed by all musicians together, as opposed to solo passages. This term was adopted into Spanish along with many other Italian musical terms, as Italian has historically been the primary language of classical music terminology.

While 'tutti' is a specialized musical term in Spanish, it doesn't have many related simpler Spanish words since it's a direct borrowing from Italian. Spanish speakers would more commonly use 'todos' or 'todas' to express the concept of 'all' or 'everyone' in everyday speech.

The word 'tutti' is also used in English musical terminology with the same meaning as in Spanish and Italian. You might recognize it in the musical term 'tutti frutti' (meaning 'all fruits'), which became popular as a flavor and as the title of a famous Little Richard song. In classical music contexts, English speakers use 'tutti' to indicate parts where all musicians should play together.