What conditions must parents fulfill in order for their child to be baptized

Many Christian parents choose to have infants and young children baptized into the faith before the children are old enough to understand the commitment or meaning of the sacrament. Therefore, parents take the vows, promising to raise the child in the faith and to be godly parents and role models. Similar promises are made by any godparents, sponsors or other family members. The requirements parents must meet before a child can be baptized vary by denomination.

i'm not sure i completely understand your question, but i will do my best.

i think the answer you are looking for is sequence. (see below)

a repeated melodic fragment would be best defined as repetition, while repeated chords (different or the same) could be a chord progression. however, you then mentioned the chord and melodic fragment beginning on higher or lower pitches, in that case, the answer could be best defined as a sequence. the definition of a sequence is as follows: "the restatement of a motif or longer melodic (or harmonic) passage at a higher or lower pitch in the same voice."

let me know if this !