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Song guide

How to sing I've Got You Under My Skin

Analyze your vocal phrasing against Frank Sinatra's classic. Get real-time feedback on breath control, swing timing, and tone.

I've Got You Under My Skin by Frank Sinatra
I've Got You Under My SkinFrank Sinatra · 1956
Before you sing

Song DNA

Medium Difficulty
Ab2 - F4 Vocal Range
Baritone Best Voice Type
Db Major Key Signature
3:43 Duration
Chest Register

The Art of the Slow Build

Written by Cole Porter and immortalized by Frank Sinatra in his 1956 album Songs for Swingin' Lovers!, this track is a masterclass in dynamic control. Unlike modern pop songs that stay loud throughout, this arrangement by Nelson Riddle starts intimate and grows into a powerful brass-driven climax.

To sing this well, you need to channel your inner Baritone smooth. It requires a relaxed larynx, excellent breath support for long legato lines, and the ability to "swing" lightly without rushing the beat.

Phase 1: The Casual Croon (0:00 - 1:45)

The song begins in Db Major. The tone should be conversational, almost like you are whispering in someone's ear. Keep the volume around a 3 or 4 out of 10.

The Technique: Focus on "Legato." Connect your vowels. Do not chop the words up. When Sinatra sings "deep in the heart of me," the vowels flow into one another like a river.

Phase 2: The Bridge (1:45 - 2:40)

After the instrumental break, the energy shifts. The lyrics "I'd sacrifice anything come what might" need more chest resonance. You are no longer whispering; you are declaring.

Be careful with the rhythm here. Sinatra creates tension by "back-phrasing"—singing just slightly behind the rigid beat of the drums. This creates that signature relaxed cool factor.

Phase 3: The Climax (2:40 - End)

The song builds to a fever pitch. The line "Don't you know, little fool, you never can win" climbs in pitch and volume. This leads to the highest belt of the song, an F4.

To hit the high F safely, maintain the "yawn" sensation in the back of your throat. If you tighten up, the note will sound thin and strained. Think of sending the sound out to the back of the room.

Questions answered

Frequently asked questions

What is the highest note in this song?
In Sinatra's key of Db Major, the highest note is an F4 (on the word "win" near the end). It is well within the range of most Tenors and Baritones.
Can a Tenor sing this song?
Yes, though it lies low for a Tenor. You might want to transpose it up +2 semitones in the Singing Coach AI app to make the low notes (Ab2) shine more brightly.
How do I get that "Sinatra Sound"?
It's all about vowel modification. Round your vowels slightly (think "Ah" towards "Aw") and keep the airflow steady. Avoid nasal placement; keep the resonance in your chest.
Put it into practice

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