Browsing through my CG computerized discography, I found 2409 composition titles with the word love: in English (love), French (amour) and Spanish (amor). Here is a small sample of what I have found. Happy Valentine Day!
Brégent, Michel-Georges
Sappho. Trois poèmes d’amour [Three Love Poems] (1979) [Soprano and Guitar]
Brouwer, Leo (1939-)
From Preludios Epigramáticos (1981) [solo guitar]:
VI Llegó con tres heridas: la del amor, la de la muerte, la de la vida
[He arrived with three wounds: the love one, the death one, the life one]
Goss, Stephen (1964-)
From Songs of Ophelia (2016) [Soprano and guitar]: II. Tomorrow Is Saint Valentine’s Day
Gray, Steve (1947-) From Guitar Concerto: II Love Song
Houghton, Phillip (1954-) Kinkachoo [a sacred bird], I Love You [Solo Guitar]
Kleynjans, Francis (1951-)
Variations sentimentales et capricieuses sur une mélodie d’amour [Solo Guitar][Sentimental and capricious variations on a love melody]
Kučera, Václav (1929-2017)
From “Diario”, Omaggio a Che Guevara (1971): I Day of Love [Solo Guitar]
Marco, Tomás (1942-) From 22 Tarots (1991): VI L’Amoureux [The Lover] [Solo Guitar]
Merlin, José Luis (1952-)
From Cinco Canciones De Amor: I Canción Del Caminante Enamorado [Enamored Walker Song] [Solo Guitar]
Paganini, Niccolo (1782-1840)
From Duetto amoroso for mandolin and guitar: VIII Marques d’amour [Love marks]
Rak, Štěpán (1945-) First Love [Solo Guitar]
Sor, Fernando (1778-1839)
From 12 Seguidillas for soprano and guitar: II De amor en las prisiones [Of Love in jails]
Tesař, Milan (1938-) From Suite Pinocchio: III Avec amour [With Love] [Solo Guitar]
Walton, William (1902-1983) Anon. in Love (Song Cycle for Tenor and Guitar]