The phrase "a soft tune" is correct and usable in written English.
It can be used to describe a gentle or soothing piece of music or melody.
Example: "As she drifted off to sleep, the sound of a soft tune played in the background, lulling her into a peaceful slumber."
Alternatives: "a gentle melody" or "a soothing song".
"Backstage" is a soft rock tune with hints of pop.
Instead, it's a soft, quiet tune and ends on a gentle note.
But there were some formal surprises; one soft tune swathed in 70's pop-jazz sentimentality changed direction radically into a slow four-four swhen, when Mr. Peterson toyed with blues phrasing, detonating a many-chorus improvisation, full of wavelike runs that lasted through entire bars of music and covered swaths of keyboard.
When I was a child, my mom taught me a nursery rhyme to recite whenever I saw the moon: on car rides, in an airplane, walking on a trail, wherever I was, all I had to do was look up and repeat that soft tune... "I see the moon and the moon sees me; the moon sees the somebody I want to see; so God-bless the moon and God-bless me, and God-bless the somebody I want to see".
In rhythm to the soft tunes in the backdrop, I waved "au revoir" to the barrister behind the petite wooden bar and continued my journey to Saint Julien, where I arrived at Château Branaire Ducru - one of my favorite Bordeaux wineries.
It was recorded harmlessly enough, and aside from the slight problem that it gets played a lot, it is a soft, melodic, mellifluous tune sung by a nice young man from a simpler day.
The result was a hypnotically soft country tune; Emmylou Harris should cover it.
A soft soundtrack of dance tunes throbbed from his office.
It's present throughout their most recent EP Some Other Hunger, most notably "In the Sink," a 44 second melody, dopily hummed underwater, wrapping the tune in a soft wall of bubbles, as if lazily sung by a child in the bath.
But hidden under the tart coating is a soft, tender core, perfectly in tune with Tchaikovksy's vivid score.
