These images are of an interactive music activity called "Country Music Rehearsal Jam", part of an exhibit about American music entitled "Rhythm, Roots and Rhyme", currently at the Boston Children's Museum and soon on tour throughout the country.
Country Music Reheasal Jam Bus Country Music Rehearsal Jam - Interior
   
Country Music Rehearsal Jam - Dobro   Country Music Rehearsal Jam - Guitar Sensor
Designed for children ages 5 through 8 (but also enjoyed by children of all ages), the activity presents the experience of playing in a country band.  Guests can perform on the keyboard and strum the guitar or dobro to play the corresponding parts of a song.  With multiple players, each has an opportunity to provide the melody, while the others simultaneously provide appropriate rhythm parts.

It combines the thrill of truly realistic interaction with musical instruments and the satisfaction of never sounding bad, regardless of skill.