The piano solo has a baroque feel, and while that might be the influence of actual baroque music (as Argent says in the liner notes for Classically Speaking, "I've always loved Bach!"), it might also be the Beatles' influence, specifically the baroque-inspired keyboard solo played by George Martin in "In My Life."
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This morning I listened to the entire album, and I noticed something about "A Moment in Time":
As rendered in the liner notes, the first few lines are:
All my beginningsThat preciously I findLead me to sorrowOr happiness incline
I'd write these as two lines rather than four, but regardless, there's a syntactical inversion. Instead of "beginnings that lead me to sorrow or incline me to happiness," the second of those verb phrases is inverted, and that inversion mirrors how sorrow and happiness are opposites.
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As a general point, I also noticed that a number of the songs mention breath or breathing. I lookt through the lyrics, and six of the ten songs have one or the other. Obviously, there's "breathe out, breathe in" in the title track, but there's also "I'd take my last breath whispering your name" in "Any Other Way," "She reminds me of / The breath of summer sun" in "Shine on Sunshine," "Feeling for the breath of angels" in "A Moment in Time," "You take my breath away" in "Another Day," and "Like a baby I'm learning to breathe" in "I Do Believe." So Breathe Out, Breathe In is appropriately titled.