Questions & Answers about Musiikki soi kahvilassa.
- Musiikki = music (nominative singular)
- soi = plays/rings/sounds (3rd person singular present of soida, an intransitive verb)
- kahvilassa = in the café (inessive case: kahvila
- -ssa = “inside the café”)
- Musiikki soi kahvilassa: treats “music” as a whole/generic or contextually definite thing (“the music,” “music as such”). Slightly more formal or generic-sounding.
- Musiikkia soi kahvilassa: partitive subject; sounds like “some music is playing,” the most natural everyday way to say it when you just mean there’s music on.
Both are correct; the partitive version is very common in real-life descriptions.