Pierne's Piano Concerto is a pleasant but not particularly well constructed and rather insubstantial work. It is clearly influenced by Saint-Saens but there is no trace of his flare and little of his melodic memorability. The first movement does have a strong second subject but there is no real development. The recapitulation is severely truncated. The scherzo is so heavily influenced by the one in Saint-Saens's Second Piano Concerto as to be practically the same piece! The finale (there is no slow movement) has an introduction which quotes the two main themes of the first movement. This leads to a vigorous main theme and some quite attractive subsidiary material. Again there is little real development.
The "Fantaisie-Ballet" is a sequence of four short tuneful movements again in the manner of Saint-Saens. The "Scherzo-Caprice" has some attractive waltz-like music reminiscent of Saint-Saens's "Wedding Cake".
The later "Poeme Symphonique" is completely different in mood. It is very Franckian in its harmony and is much the most substantial music on this disc. This is a piece which repays repeated hearings.
As you would expect from this source, these are fine performances and recordings. Not an urgent recommendation but worth exploring.