I'm starting to analyze the Slavic March by Tchaikovsky. In measures 6, 8 and 9 the Clarinet has these repeated whole notes, but I don't know what they mean (I'm not a clarinetist). The bassoon/fagotto also has the same repeated whole notes in measure 8.
As far as I understand they're not the same as a "breve" since that wouldn't fit, is that correct?