He was so tuned in to Elisabeth's voice, that just by scanning a piece of music, he knew where to change the composition to compliment her, and where to back off to let her shine.
All will be tuned in other to produce overtones of the fundamental note.
Although not everybody is a reality TV buff, if you haven't tuned in to a Dancing with the Stars episode, you've missed out on a whole lot of fun and suspense.
When you are holding a guitar that is tuned in standard tuning, the string that produces the highest pitch is the bottom string, or the string that is closest to your legs.
In fact, a lap steel can be tuned in almost any tuning imaginable.