“If I Should Lose You” was written by Ralph Rainger and Leo Robin for the 1936 film Rose of the Rancho. It became a jazz standard through Charlie Parker’s 1950 recording with strings and later versions by Hank Mobley and others.
The tune moves between minor and major key areas, with ii-V progressions creating a dramatic, romantic mood. It’s played as a ballad or medium swing, often with a Latin feel on the head.
For improvisation, practice minor and major ii-Vs and connect them smoothly. Charlie Parker’s string version is a great model of lyrical bebop.
Practice at a medium tempo. Learn the melody by ear.
Section by section: the opening phrases sit in a minor key, so use the harmonic minor scale over the dominant chords and Dorian over the minor chords. When the harmony brightens to the relative major, land on the major third. The second half repeats the dramatic minor sound before a final ii-V resolution. Many players use a Latin feel for the head and switch to swing for the solos, so practice both. Charlie Parker’s version with strings shows how bebop lines can sound lush and romantic.
Practice tip: play minor ii-V-i licks in the tune’s key until they flow without thought. This tune uses that progression repeatedly, so a few solid phrases will carry you a long way.
Using the If I Should Lose You Lead Sheet PDF on gigs: keep a concert-pitch copy and a copy in your instrument’s key, label the intro and ending on the page, and note the tempo and feel the band usually plays. Small notes like these keep you calm when a tune gets called on the spot.
Is it hard to play? It’s intermediate. Recordings to study: Charlie Parker with Strings and Hank Mobley’s Soul Station-era recordings. Learn more about the composer on Ralph Rainger’s Wikipedia page, and find more standards on Minedit.