Revise first line table. Treat the tune title as a paragraph (ragged right). Set the column widths to give a wider and hence larger first line tune graphic. Keep using the cropped first line graphic, and introduce our own gaps between lines to keep the tune separations clear. I did look at using the grpahics borders, but that gives left and right margins too.

<div class="dottes-tune-list-item">
  <div class="dottes-tune-list-item-link">
    <a class="dottes-tune-link" href="@TUNE@.html">@TITLE@</a>
  </div>
  <div class="dottes-tune-list-item-image">
    <img class="dottes-tune-table-image" src="firstline-@TUNE@.png"
         alt="@TITLE@ first line">
  </div>
</div>