String instruments are not emotions.
EDIT: And really, you can say that Soule's music has emotion, but look at how people talk about it. They'll use terms like "inspiring" or "beautiful" or "amazing" or "excellent" or "great"... but I have never seen anyone say that one of Soule's compositions made them feel lonely, happy, sad, wistful, hopeful, or anything like that. His music is made to sound like a certain kind of soundtrack music, not to evoke feelings or atmosphere.
It's how he used the strings along with other instruments that made the music great.
inspiring, beauty, excellence all lead to a certain type of emotion. Then you haven't spoken to many people about it because many of his soundtracks make people feel happy, or sad, or relaxed, or in some way relate it to their life and not just in the game world.