[TOMT] Music group that I can't remember

I listened to a few songs by a certain group a few years ago and I can't remember their name! I also can't find any of their songs on Youtube. I remember they had a lot of songs named after seasons. One was called like summer night or something like that and it was just the sounds of a summer night, like cicadas and just peaceful sounds. I'm pretty sure there was a song titled Autumn or something like that. They had peaceful kind of sad songs. I think I found them from a commercial. Another title of one of their songs had the word marching or march in it. Anyone know?? Sorry for the bad description