Mulree, Barbara Celtic Interlude, for flute and piano. Celtic Interlude is a short Irish-Celtic piece in three sections, each with a different mood, evocative of the green undulating countryside , the wilder moorlands and finally the many lakes and meandering rivers, before returning to the original scene to end. The slightly melancholy sound is typical of much traditional Irish music. The piano accompaniment compliments the flute , and is played like the harp.