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 Lent Ash Wednesday
Download proper in English (same Gregorian mode): LTAW proper ENG PW
Responsorial : (cantor sings once, schola repeats, cantor sings verses, schola leads assembly in response between verses).
Click to hear Responsorial (English)
Tract or Lent Acclamation
Blessing and distribution of ashes:
Download Communion verses: LTAW Comm verses GM
1962 Roman Gradual – Extraordinary Form of the Roman Rite – Ash Wednesday