Historic representation of performance on a <a href="https://en.wikipedia.org/wiki/Viola_da_gamba" class="extiw" title="en:Viola da gamba">viola da gamba</a> and a <a href="https://en.wikipedia.org/wiki/Viola_da_braccio" class="extiw" title="en:Viola da braccio">viola da braccio</a>, from the <a href="https://en.wikipedia.org/wiki/Isenheimer_Altar" class="extiw" title="en:Isenheimer Altar">Isenheimer Altar</a>
<ul><li>In the foreground, the manner of playing the viola da gamba. (An angel holds the bow underhand, but the artist seems to have incorrectly inverted the position of the arm for bowing.)</li>
<li>In background, the manner of playing the viola da braccio.</li></ul>
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<a href="//commons.wikimedia.org/wiki/Matthias_Gr%C3%BCnewald" title="Matthias Grünewald">Matthias Grünewald</a></div>
cropped from <a href="//commons.wikimedia.org/wiki/File:Mathis_Gothart_Gr%C3%BCnewald_036.jpg" title="File:Mathis Gothart Grünewald 036.jpg">Image:Mathis Gothart Grünewald 036.jpg</a>