I saw this sentence today as the motto to a meeting of English teachers:
What’s in store for us teachers?
Although I think I can grasp the meaning of this sentence — something like “what is being kept for us?” — I can’t understand what it means when used in the song “I get along without you very well”, as made famous by Chet Baker:
What a guy! What a fool am I?
To think my breaking heart could kid the moon.
What's in store? Should I ’phone once more?
No, it’s best that I stick to my tune.
So — does it just mean “what is being kept for me?” or does it have a more idiomatic, nonobvious meaning? As a bonus, if anybody knows what is “stick to one’s tune”, please let me know.