bass violin
...that one of the first known instances of a composer specifically calling for the use of a bass violin, the predecessor of the modern cello, was in the opera Orfeo by Claudio Monteverdi?
...that one of the first known instances of a composer specifically calling for the use of a <b id="mwBdQ"><a href="./Bass_violin" id="mwBdU" rel="mw:WikiLink" title="Bass violin">bass violin</a></b>, the predecessor of the modern <a href="./Cello" id="mwBdY" rel="mw:WikiLink" title="Cello">cello</a>, was in the opera <i id="mwBdc"><a class="mw-disambig" href="./Orfeo" id="mwBdg" rel="mw:WikiLink" title="Orfeo">Orfeo</a></i> by <a href="./Claudio_Monteverdi" id="mwBdk" rel="mw:WikiLink" title="Claudio Monteverdi">Claudio Monteverdi</a>?