Two Nerds In Nature:

vocals & lyrics - Tom Leader @tom_leader_music
keys & bass - Jérôme B. Sedeyn @jeromebsedeyn
drums - Patryk Szczechowski @patryk_percussion
violin - Jenny Asparro @jenny_asparro
viola - Þórhildur Magnúsdóttir @thorhildurm,
viola -Meriam Kaas Kayhan @meriamkayhan
cello - Tiril Lorås Ystgaard @tiriloras

composition, arrangement, production, guitar, recording, mix, master: Ole Breuer

A Friendly Goodbye:

piano - Jérômè B. Sedeyn
composition, recording, mix, master - Ole Breuer

Spirelli, Tournesol:

production, mix, master - Ole Breuer