Piano is great. Rhytms, Arps, Strings, Melodies etc. Just by one dude.
It has great limitations, especially when compared to a rich sound tapestry of larger ensemble.
The biggest advantage is it being pretty comprehensive instrument for a solo performer/composer. Piano's limited timbre would be rather repetitive, unless you really hire a virtuoso. A keyboard like the one in the video is rather awful, IMO.l, but then again I dislike electric instruments. (Theremin is interesting in small doses though)
