The variety of musical forms in Rev. Zbigniew Piasecki's (1916-2011) collection „I want to sing for my Lord” According to the music, religious folk songs are not a homogeneous material. The repertoire of religious songs disseminated in many editions is characterized by stylistic and formal diversity. The example of such a set is Rev. Zbigniew Piasecki’s collection “I want to sing for my Lord”. This article is a presentation of the musical forms included in the collection. At the beginning, the forms of verses and choruses were discussed. Afterwards, differentiation of the verse forms was shown by the presentation of one-, two- and three-part composition. The next step was the presentation of the hymns that are a special kind of the verse songs. Then, the psalms that belong to a group of refrain songs were discussed. The following part of the article presented the liturgical masses. The final part discussed the wide range of religious songs, that can be found in Rev. Piasecki’s edition. The variety of the music forms shows the diverse nature of songs included in this edition. However, the further study of the detailed aesthetic and liturgical assessment of the repertoire contained in the collection are required.