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| I'm Gonna Sing: songs for young hearts | Robert J. Taylor, Jr. | Taylor Publications | Montgomery, Texas | 2003 | Churches of Christ | | 62 | | 2830529 |
| Ideal Sunday School Hymns | J. Lincoln Hall; C. Austin Miles; Adam Geibel; Hall Mack Co. | Hall Mack Co. | Philadelphia | 1913 | | | 226 | | 2821582 |
| If I Could Visit Bethlehem | | MorningStar | | 2000 | | | 15 | | 2818052 |
| Immanuel Hymnal | Macmillan Co. | Macmillan Co. | New York | 1929 | | | 566 | | 2821586 |
| Immanuel's Praise | Charles M. Alexander; Fleming H. Revell Company; J. Fred. Scholfield; Geo. C. Stebbins | Fleming H. Revell Company | New York | 1914 | | Has Music | 259 | | 2821587 |
| Imperial Songs: for Sunday schools, social meetings, Epworth leagues, revival services | Jesse L. Hurlbut, D.D.; Stephe V. R. Ford; Hunt & Eaton; Cranston & Curts | Hunt & Eaton / Cranston & Curts | New York / Cincinnati | 1894 | | Has Music | 221 | | 2828153 |
| In Blossom Time | J. E. Trowbridge; Henry D. Noyes & Co. | Henry D. Noyes & Co. | Boston | 1892 | | | 4 | | 2821591 |
| In Every Corner Sing: songs of God's world | Geoff Weaver | Royal School of Church Music | Wiltshire, England | 2008 | | Guitar chords; Has Music | 99 | | 2829780 |
| In Excelsis for School and Chapel | Century Co. | The Century Co. | New York | 1900 | | Has Music | 325 | | 2821593 |
| In Excelsis for School and Chapel. l7th ed. | Century Co. | Century Co. | New York | 1924 | | | 294 | | 2821594 |
| In Excelsis Gloria: Carols from Christmastide | Arthur H. Brown; Thomas Bosworth & Co. | Thomas Bosworth & Co. | London | 1885 | | Christmas; Has Music | 28 | | 2830399 |
| In Excelsis: hymns with tunes for Christian worship | The Century Co. | The Century Co. | New York | 1897 | | | 1135 | | 2821595 |
| In Excelsis: Hymns with Tunes for Christian Worship. 7th ed. | Century Co. | Century Co. | New York | 1900 | | | 1157 | | 2821596 |
| In Floral Ways | C. A. Miles; Hall Mack Co. | Hall Mack Co. | Philadelphia | 1914 | | | 12 | | 2821597 |
| In His Name | W. N. Cook; Teachers' Music Pub. Co. | Teachers' Music Pub. Co. | Hudson, N.C. | 1916 | | | 152 | | 2821599 |
| In Melody and Songs: hymns from the Psalm versions of Isaac Watts | Adrienne Tindall; Morgan Simmons | Darcey Press | Vernon Hills, IL | 2014 | | | 105 | | 2828840 |
| In Spirit and In Truth: a worship hymnal | | Bogard Press | Texarkana, AR-TX | 1987 | American Baptist Association | | 0 | | 2829525 |
| Inclusive Songs for Resistance and Social Action | Jann Aldredge-Clanton; Larry E. Schultz | Eakin Press | Fort Worth, Texas | 2018 | | Gender-inclusivism | 69 | | 2829337 |
| Indian Melodies | Thomas Hastings, Esq.; Thomas Commuck | G. Lane and C. B. Tippett | New York | 1845 | Methodist Episcopal Church | Shape Note | 120 | | 2829220 |
| Indian Melodies | Thomas Commuck; Thomas Hastings; G. Lane & C. B. Tippett | G. Lane & C. R. Tippett | New York | 1845 | Methodist Episcopal Church | | 120 | | 2829242 |
| Infant Praises: a collection of sacred songs, hymns, and music, for use in the Sabbath school primary department | Jno. R. Sweney; Wm. J. Kirkpatrick; John J. Hood | John J. Hood | Philadelphia | 1887 | | Has Music | 127 | | 2821601 |
| Infant Songs | W. A. Ogden; E. Pitt; W. W. Whitney | W. W. Whitney | Toledo, Oh. | 1882 | | | 42 | | 2821605 |
| Infant Songs | W. A. Ogden; E. Pitt; W. A. Ogden | W. A. Ogden | Bellefontaine, Oh. | 1881 | | | 42 | | 2821608 |
| Inspirational Hymns of the Church of the Brotherhood of Jesus, Ancient Order of Melchisedek | L. M. Entwistle; Magi Pub. Co. | Magi Pub. Co. | Waldron, Ark. | 1909 | Church of the Brotherhood of Jesus | | 18 | | 2821611 |
| Inspirational Songs for Sunday School, Social Worship, Missionary and Evangelistic Work | N. W. Fink; J. B. Lutz; W. B. Rose; Light and Life Press | Light and Life Press | Chicago | 1924 | Free Methodist Church of North America | | 301 | | 2821613 |
| Inspiring Gospel Solos and Duets No. 1 | Haldor Lillenas, Mus. D.; Lillenas Publishing Co. | Lillenas Publishing Co. | Kansas City, Mo. | 1943 | | Has Music | 150 | | 2829513 |
| Inspiring Gospel Solos and Duets No. 2 | Haldor Lillenas; Lillenas Publishing Company | Lillenas Publishing Company | Kansas City, Missouri | 1948 | | Has Music | 151 | | 2829538 |
| Inspiring Hymns | Alfred B. Smith | Singspiration Sacred Music Publishers | Grand Rapids, Michigan | 1951 | | | 523 | | 2828547 |
| Inspiring Hymns: for the Church and Sunday-School | E. O. Excell; E. O. Excell | E. O. Excell | Chicago | 1914 | | Has Music | 371 | | 2821617 |
| Inspiring Songs No. 1: for the Sunday school | Geo. J. Meyer; Thoro Harris; Lester Price; Meyer & Brother | Meyer & Brother | Chicago | 1906 | | Has Music | 189 | | 2828207 |
| Institute Hymns and Songs | Howard Hare; Methodist Book Concern | Methodist Book Concern | New York | 1925 | Methodist hymnals (general) | | 53 | | 2821619 |
| Institute Songs; Selections from The Chapel Hymnal | T. B. Noss; State Normal School | State Normal School | California, Penn. | 1902 | | | 20 | | 2821621 |
| Inter-Church Hymnal: A Treasury of Hymns and Worship Material for public and private use | Frank A. Morgan, M.A., B. D.; Katharine Howard Ward; Albert W. Palmer, D.D.; Biglow & Main, Inc. | Biglow & Main, Inc. | Chicago | 1930 | | Has Music | 431 | | 2821623 |
| International Gospel Hymns and Songs | P. P. Bilhorn; Bilhorn Bros. | Bilhorn Brothers | Chicago | 1905 | | | 175 | | 2821627 |
| International Praise: for the Sunday school and church | E. O. Excell; E. O. Excell | E. O. Excell | Chicago | 1902 | | Has Music | 310 | | 2821629 |
| International Singing Annual for Sabbath Schools | Philip Phillips; A. S. Barnes & Co. | A. S. Barnes & Co. | New York | 1874 | | | 82 | | 2821631 |
| International Song Service: with Bright Gems from fifty authors, for Sunday-schools, gospel meetings, missionary and young people's societies, prayer-meetings, etc. | Philip Phillips; Mast, Crowell & Kirkpatrick | Mast, Crowell & Kirkpatrick | New York | 1895 | | Has Music | 301 | | 2821633 |
| International Song Service: with gems rom fifty authors | Philip Phillips; The Phillips Publishing Co. | The Phillips Publishing Co. | New York | 1887 | | | 244 | | 2830364 |
| International Songbook | Doreen Helen Klassen | Mennonite World Conference | Carol Stream, IL | 1990 | | | 0 | | 2827694 |
| Introit Hymns for the Church Year | Christoph Tietze | World Library Publications | Franklin Park, IL | 2005 | | | 0 | | 2829407 |
| Introits: or Ante-Communion Psalms for the Sundays and Holy Days Throughout the Year | John Henry Alexander; Lindsay & Blakiston | Lindsay & Blakiston | Philadelphia | 1844 | Protestant Episcopal Church | | 88 | | 2821635 |
| Inyimbo Sha Bwina Kristu | | Rhodesian Printers LTD | Ndola, Zambia | 1961 | United Church of Central Africa in Rhodesia | | 0 | | 2830502 |
| Iona Abbey Music Book: songs from the Iona Abbey Worship Book | | Wild Goose Publications | Glasgow | 2003 | | Guitar chords | 62 | | 2829029 |
| Isles of Shoals Hymn Book and Candle Light Service | The Isles of Shoals Association | The Isles of Shoals Association | New Hampshire | 1908 | American Unitarian Association | Has Music | 219 | | 2821637 |