At least 8 hours a day, 7 days a week. This may sound somewhat extreme, but this is what it takes to be the top pianist in today's world. That 8 hours is, of course, not done in one sitting ... spread it out over the course of the day to keep from getting fatigued. You should also have a tutor [teacher, professor] who will give you the fine points of technique and playing.
A virtuoso is a person that is highly skilled in music or another artistic form. Which means that a piano virtuoso is a person that is highly skilled in playing the piano specifically.
A "piano virtuoso" is the correct term.
Piano
The piano has 88 keys in total.You have to practice a lot to become very good at it.
Sergei Rachmaninoff (Rachmaninov)
Same way you get to Carnigie Hall; PRACTICE PRACTICE PRACTICE. Most piano virtuosi begin at a very young age. They will often have parents with keyboarding skills themselves who can teach the young music student. Over years of practice and practical lessons advancing the skills of the student (often through private study with a college-level professor or a professional keyboardist), the student can earn the title of virtuoso. However, at this point I must recognize that virtuosi are traditionally recognized as those with an immense amount of natural talent. This talent DOES need to be nurtured and guided to come to fruition, but it is often unlikely that someone will purely be taught how to be a virtuoso. This, by default, makes "becoming a virtuoso" a practical impossibility; even though it CAN be done.
on the piano
In order to become a good basketball player, one must practice daily.
Find a good piano teacher. Practice, Practice, Practice.
Rubinstein
He was a piano virtuoso and you know how those piano virtuosos componse good compositions. He was rooted in the baroque and classical masters. You have to hear some of his compositions to feel this.
Well it takes a lot of practice , practice makes perfect so just try to learn the piece well and practise