James Hepokoski found "rotational form" in one of these works, and that work's third movement has markings such as "Misterioso", "Un pochettino largamente", and ends with "Un pochettino stretto",  as well as a triple time motif inspired by swan calls.
The composer of these works described the end of the third one of them as "the crystallization of chaos", and that work's second movement ends with two "amen" cadences in E minor. One of these works, dedicated to Axel Carpelan, draws from sketches titled Don Juan and "Christus" and interrupts a scherzo with a long silence broken by five drumbeats descending from p to pppp.  James Hepokoski found "rotational form" in one of these works, and that work's third movement has markings such as "Misterioso", "Un pochettino largamente", and ends with "Un pochettino stretto",  as well as a triple time motif inspired by swan calls. The seventh quotes from the section "Where the Stars Dwell" from the tone poem Kuutar, and is a one movement "symphonic fantasy" in C Major whose Adagio quotes from the composer's Valse Triste. The eighth never materialized, likely burned by their composer twenty years after his Tapiola. For 10 points, name this set of seven works, the second of which is associated with the composer's call for Finnish nationalism. 
The composer of these works described the end of the third one of them as "the crystallization of chaos", and that work's second movement ends with two "amen" cadences in E minor.
{Symphonies} of Jean Christian {Sibelius}