According to the Internet source given below, Johann Crüger was a German composer of well-known hymns. He was also the editor of the most widely used Lutheran hymnal of the 17th century, Praxis pietatis melica (1647).
He was born in Groß Breesen (now part of Guben) as the son of an innkeeper, Georg Crüger and studied at the nearby Lateinschule (then located in Guben) until 1613. He then traveled to Sorau and Breslau for further education, and finally to Regensburg, where he received musical training from Paulus Homberger. In 1615 he traveled to Berlin, where he studied theology at the Berlinisches Gymnasium zum Grauen Kloster. In 1616 he was engaged as a house tutor to the von Blumenthal family; his pupils included Joachim Friedrich von Blumenthal. From 1620 he studied theology at the University of Wittenberg and trained himself further in music through private study.
From 1622 to his death, a period of 40 years, he was simultaneously a teacher at the gymnasium Zum Grauen Kloster and cantor of the Nikolaikirche in Berlin.

Websites:
	Johann Crüger	Biography by wikipedia.org.

Recorder Sheet Music

Awake, My Heart, with Gladness (6-PACK) (Choral work with A/A) 8 pages. For Voices: SATB. Instruments: 2 treble instruments (flutes, recorders, or violins). Arr./Editor: William Tortolano Level: easy Publisher: GIA Publications (G-3559)

Sing with Joy (Choral work with A/A) 8 pages. For Voices: SATB. Instruments: 2 treble instruments (flutes, recorders, or violins) (instruments required). Piano reduction. Arr./Editor: William Tortolano Level: easy Publisher: GIA Publications (G-3560)