In the organizer's words:

Dear singers, ukulelistas, guitarists, bassists, squeezers and anyone else who can play chords!
At the next "Sing & Strum" event, we'll be singing and strumming until the planks shake on the little boat under the motto "Shalalaaf"! If you fancy Cologne tunes, Verzällcher, rockets and a colonaise, then you've come to the right place on the MS Rodenkirchen on January 31.
The songs will be projected onto a screen so that everyone can easily sing and play along. For the ukulelistas, there will even be fingering diagrams.
If you are interested, please write to "schrammelschorsch@online.de" for more information.