Possible Clues:

• Foreign politician welcomes row on the radio in the introduction
• Rector's initially captivated by verse introduction
• In concert, overture to Egmont is introductory piece
• In the words of Wordsworth, start to recite introduction
• Overture's key in concert
• Introduction given by Romeo in verse
• Prelude right in ode, perhaps
• Prelude to concert touring Europe
• Verse about right for an introduction
• In Wordsworth's words, perhaps, start to recite The Prelude