How to play notes over one octave at once in one voice on a piano?

1. How do I show one octave higher?
2. What does it mean to play one octave higher on piano?
3. What is octave doubling?

How do I show one octave higher?

To indicate that multiple notes, a phrase or a section of music is to be played one octave higher, the 8va sign is written above the first note. Then, we add "dashes" from the 8va sign until the end of the music that is to be played higher.

What does it mean to play one octave higher on piano?

To say that a note is one octave higher means to say that the note is the same, but it is in a higher section of the instrument. Imagine a piano. On it, the keys on the left are lower than the keys on the right. ... As the notes get higher, it is easy to see that the next C will be higher than the previous one.

What is octave doubling?

Octave doubling of a voice or pitch is a number of other voices duplicating the same part at the same pitch or at different octaves. The doubling number of an octave is the number of individual voices assigned to each pitch within the chord.