musescore alternative ?

Am looking for (maybe) a musescore alternative to do the following:
1) enter notes staff/tab as easily as musescore
2) w/o all the hoopla & do-dads of prof orchestral scores
3) with a playback "bouncing-ball" similar to the movie cartoons of the 40's
4) ability to show on LARGE screen TV sets
5) ability to interface w hand-slide-screen controller

Any ideas or suggestions. Are there musescore add-ons which would
accomplish most of above?

It is to be used in a class-room setting for rhythms/timing on guitar.

THX...