Simple English Proper (Lumen Christi Gradual and Modal Responsorial Psalms). The Roman Missal gives us these Bible verses to be sung per the examples recorded: the congregation joins the cantor for the antiphon (printed), then the cantor sing the Psalm alone, then the congregation and cantor repeat the antiphon.
1974 Roman Gradual – Ordinary Form of the Roman Rite
Download pages of the Gregorian Missal: GM Baptism of the Lord
Download proper in English (same Gregorian mode): OT BL proper ENG PW
Responsorial : OT BL respons ENG (cantor sings once, schola repeats, cantor sings verses, schola leads assembly in response between verses).
Click to hear Responsorial (English)
Alleluia (cantor intones first Alleluia, schola repeats and finish the acclamation. Cantor sings verse. Schola repeats acclamation)
Click to hear Alleluia
Download Communion verses: OTBL Comm Verses GM
1962 Roman Gradual – Extraordinary Form of the Roman Rite – Sunday in the Octave of Epiphany : Feast of the Holy Family
NOTE: in the 1962 liturgical calendar, the Baptism of the Lord is commemorated on January 13th, one week after Epiphany (on January 6th). There is no Sunday dedicated to the feast in the 1962 calendar.