The Book of Psalms, also known as the Psalms, or the Psalter, is the first book of the third section of the Hebrew Bible called Ketuvim ("Writings"), and a book of the Old Testament.
David composing the Psalms, Paris Psalter, 10th century
An 1880 Baxter process illustration of Psalm 23, from the Religious Tract Society's magazine The Sunday at Home
Psalm 11 in the 9th-century Utrecht Psalter, where the illustration of the text is often literal.
David Playing the Harp by Jan de Bray, 1670
A hymn is a type of song, and partially synonymous with devotional song, specifically written for the purpose of adoration or prayer, and typically addressed to a deity or deities, or to a prominent figure or personification. The word hymn derives from Greek ὕμνος (hymnos), which means "a song of praise". A writer of hymns is known as a hymnist. The singing or composition of hymns is called hymnody. Collections of hymns are known as hymnals or hymn books. Hymns may or may not include instrumental accompaniment. Polyhymnia is the Greco/Roman goddess of hymns.
Arvid Liljelund [de; fi; sv]'s Man Singing Hymn (1884)
In Christianity, church congregations often sing hymns together as part of their worship (Pictured: worshippers at Uffington Parish Church in England, 1944)
Hymns are often accompanied by organ music
Sanskrit manuscript page from the "Vivaha sukta" Rigveda, dated 1500–1200 BCE