@jack @nil octaves and forte could be used for accenting or emphasis, but it's not specified in Sudre's notes. There's a early dialect of Solresol that used forte for gender, but modern specs do away with gendered conjugation altogether.
http://wiki.xxiivv.com/site/solresol.html
@neauoire @jack "modern specs do away with gendered conjugation altogether" YES! fadosi lasolfa!