end (something) on a high note

To finish, complete, or leave (something) at a successful, impressive, or climactic point. I know we've had quite a few losses this season, but let's win this last game and end on a high note! After winning the Oscar, she decided to end her acting career on a high note. The CEO ended his speech at the Annual General Meeting on quite a high note when he announced that there would be a company-wide bonus at the end of the year.