The music in the movie The Untouchables is "porunacabeza", performed by thomasnewman.
"Porunacabeza" is a violin piece that is a well-known tango dance piece that has been featured in Schindler's List, Scent of a Woman, and True Lies (aka The Devil's Greatest).
Since its inception in 1935, PorUnaCabeza has become the go-to dance song for tango in the movies, with a steel and soft melody that seems to adapt to every character's psyche any scene that's laid out.
The movies "Scent of a Woman" (aka Scent of a Woman), "True Lies" (aka The Devil's Greatest), "Schindler's List," and "Mr. and Mrs. Smith" all chose PorUnaCabeza as the dance music in their movies, in addition to "Across the Sea," which is also a choice of the famous song, and its charm can be seen.
Expanded Information:
The style of Porunacabeza:
The first section of Porunacabeza presents a lazy as well as a humorous tone, and then goes into the B section which turns to a minor key, and then to a passionate and then back to the major key, with violin and harmonica as counterpoint. The violin and harmonica provide counterpoint harmonies. The contradictory yet staggered styles of the two sections fully demonstrate the tacit understanding between the two men in tango.
The passion of the B section pushes the dancers and the audience to the highest point. Then suddenly do slow down, back to the first key to close. The entire piece was played by Perlman's superbly composed, stirring and refined tango.
The violin is sharp but not harsh, staccato but introverted, high-pitched and introverted, leading the melody, like a woman stepping on the tango steps, with a noble pace and arrogant attitude, to the dance partner want to welcome but also refuse to be entangled in it.
And the piano bright rhythm, the plot step by step into the climax, in the music before the climax of the arrival of a powerful keystroke, as if in the next spin before taking a deep breath, and then set off to conquer the dance floor, the organ is slightly soothing accompaniment, that is, the desire to welcome but also refused in the flavor ...... of a song is over, and the melody of the mind Lingering, as if a dance without fun, always just short of the last step.
Reference:
Baidu Encyclopedia - Untouchable - Musical Original