Dawn—with 151 poems and 333 songs, most of which were well-known compositions—was released and became the group's official hymnal until 1928. This was followed by lyrics for 11 songs appearing in the February 1, 1896 issue of The Watchtower, under the title Zion's Glad Songs of the Morning, written by members of the denomination. A supplement of 81 songs was released in 1900, many written by a single individual, under the title Zion's Glad Songs. Two revised editions of this hymnal were released between 1902 and 1908. In 1905, the 333 songs published in 1890 along with musical notation were released under the title, Hymns of the Millennial Dawn. This book was released in a number of other languages, mainly in a shortened form. In 1925, Kingdom Hymns was published, with 80 songs intended for children and youths. In 1928 Songs of Praise to Jehovah was released, which included 337 songs. Following the adoption of the name Jehovah's witnesses in 1931, the Kingdom Service Song Book was released in 1944 (and revised in 1948), which included 62 songs. This was followed by the release of Songs to Jehovah's Praise in 1950, with 91 songs. Some of the music was from hymn tunes of other churches or based on themes from classical music;(for example, Beethoven's Piano Sonata no. 23 in F minor, op. 57 ("Appassionata"). Others used relatively new music, some of which is still used. Singing and Accompanying Singing and Accompanying Yourselves with Music in Your Hearts was released in 1966, with 119 songs. Melodies identified as not having been written by Jehovah's Witnesses were not retained. For the first time, a policy was adopted of including only material written and composed by Jehovah's Witnesses, though some songs composed by non-Witnesses were unintentionally included. Sing Praises to Jehovah In 1984, Sing Praises to Jehovah was released, with 225 songs. It was subsequently introduced in many other languages. Many songs in Sing Praises to Jehovah were present in the previous two books; some that were found not to have been written by members of Jehovah's Witnesses were excluded. Sing to Jehovah In 2009, the release of a new hymnal, Sing to Jehovah, was announced. It contains 135 songs, including 42 new songs, and alterations to the melodies and lyrics of others. Reduced editions comprising 55 songs are available in less common languages. Six volumes of orchestral and vocal arrangements based on