100 algorithmic ambient apps bach beethoven board brahms cards christmas circle classic competitive composers concentration conducting cooperative cooptional cue-cards dance debussy dice drawing easy events few-players fifths free-improv game games gershwin guessing handel hard haydn high-intermediate highscore images in-genre insert inspire-cards instrument-preparation instruments interpretation jigsaw keyboard kids listening loop low-intermediate many-players matching memory merry minimal mozart music musical mussorgsky narrative no-props of pairs papageno piano puzzle quick random rhythm rhythmic role-play schubert schumann score simple smetana solo somido sound-collage sound-design spatial speeding-up strauss tchaikovsky tchaikowsky teams timed tonal top virtual vivaldi voting wagner words