Psalm 98 is celebratory and triumphant, urging the earth to make a joyful noise unto the Lord. The piano composition should reflect this jubilation and reverence. Use major keys and uplifting melodies to convey a sense of joy and grandeur.
Start with a gentle, inviting melody that gradually builds in complexity and volume, echoing the call to "sing unto the Lord a new song."
Introduce a bold, clear melody that could serve as the musical representation of "making a joyful noise." This could include powerful chords, bright arpeggios, and a rhythmic base that mimics the orchestral percussions often associated with celebration.
Incorporate a softer, contemplative section representing the verses that speak of the sea roaring and the hills being joyful together. This could be more fluid and lyrical, providing a contrast to the main theme.
Return to the main theme with greater intensity and complexity, symbolizing the universal joy and exultation called for in the psalm.
Conclude with a grand, resounding finish that slowly decrescendos, leaving a lingering sense of awe and peace, reflecting the glory of the Lord’s righteousness and wonders.
Develop specific motifs, utilize harmonics and chord progressions, and extensively play with dynamics to reflect the varying degrees of joyous noise from the psalm.
The score could also include subtle notations or preface text that draws direct inspiration from the text of Psalm 98, guiding the performer in the emotional and spiritual intent of each section.