Ukrainian folk melodies
...that the Russian composers Peter Tchaikovsky, Nikolai Rimsky-Korsakov, and Serge Rachmaninoff used Ukrainian folk melodies in their works?
...that the <a href="./Russia" id="mwBO4" rel="mw:WikiLink" title="Russia">Russian</a> composers <a class="mw-redirect" href="./Peter_Tchaikovsky" id="mwBO8" rel="mw:WikiLink" title="Peter Tchaikovsky">Peter Tchaikovsky</a>, <a href="./Nikolai_Rimsky-Korsakov" id="mwBPA" rel="mw:WikiLink" title="Nikolai Rimsky-Korsakov">Nikolai Rimsky-Korsakov</a>, and <a class="mw-redirect" href="./Serge_Rachmaninoff" id="mwBPE" rel="mw:WikiLink" title="Serge Rachmaninoff">Serge Rachmaninoff</a> used <b id="mwBPI"><a href="./Ukrainian_folklore" id="mwBPM" rel="mw:WikiLink" title="Ukrainian folklore">Ukrainian folk melodies</a></b> in their works?