Find and post a music video which contains any one word from the title or band name of the previous posters song. Sometimes a poster will include album name. You may match a word from that as well. And if posting a one word title, you may want to album name as well - to help the next person make a match.
Include band name and song title. Post any kind a song you want. Just abide by normal forum rules please.
I'll go twice to illustrate how it'is done...