The world-premiere recording of these works is performed on the famous E.F. Walcker & Co organ, built in 1884 with four manuals and 124 registers, it was the largest pipe organ in Europe at the time of its unveiling.

As a nine-year-old boy, when his little legs barely reached the pedalboard, Alfrēds Kalniņš sat at the organ in the church in his hometown in Latvia and led the congregation in a chorale by Martin Luther. That organ bench eventually became his throne, as Kalniņš rose to become the most famous Latvian concert organist of his time. But first, from 1897 to 1901, he benefited from the teachings of organ professor Louis Homilius at the Saint Petersburg Conservatory. There, composition took over the young musicians's imagination, and he wrote his first ten solo songs.

Over the years, that number rose to two hundred fifty songs. But in Saint Petersburg, Kalniņš's only composition for organ was the Fantasia, which he self-critically and with a wry smile always referred to as the only improvisation he wrote down on paper. However, as a celebrated improviser, he performed at the organ thousands of times, extemporising on themes from melodies suggested by listeners as well as folk songs and, during Latvia's war of independence, soldiers' songs. It was also during that same war (1918/19) that he composed his first opera, Baņuta, and founded the Latvian National Opera, at the same time composing works in the symphonic, choral, piano and other genres.