"Yes, you can play piano."
Translation:Так, ви можете грати на піаніно.
Firstly, it's "фортепіано". Secondly, you should keep in mind that it's not the name of a specific musical instrument, but rather a type of those. "Піаніно" is actually just upright piano, "рояль" is grand piano and "фортепіано" is well, "piano". We don't know the actual context of this sentence, but in life just choose the word that best fits your needs