Noun
(music) The highest and usually climactic note of a song or composition, especially one that is difficult to reach.
After weeks of practice Alyssa was finally able to hit the high note of her song perfectly.
(figuratively) A climax or best achievement.
Used other than figuratively or idiomatically: see high, note.
Source: en.wiktionary.orgEarly reviews of The High Note - which is directed by Nisha Ganatra - have been largely positive, albeit not glowing. Source: Internet
Star of the Fifty Shades of Grey films will also be chatting to Graham about her new role in a romantic comedy called The High Note. Source: Internet