The concept behind the production of the sample sets for Hauptwerk proposed in these pages is above all that of the technical-sound documentation of particular and little-known instruments: the Italian organ building, especially in historical instruments, has - despite the usually small size - legendary sounds with a crystalline and very personal rendering both in the individual stops and in the amalgams and with balances often of rare beauty that make them very enjoyable.
However, up to the threshold of the twentieth century, the ancient Italian organ is also, usually, heavily limited by technical resources - real keyboard and pedalboard extensions, "short" first octaves, single manual, divided registers - in fact prevent any kind of study that fall outside the Italian Renaissance repertoire or from that of an opera imitation of the nineteenth century.
The production of sample sets allows within reasonable limits to partially overcome these constraints, proposing - alongside a faithful copy of the original - extended versions in which the extensions of keyboards and pedals are brought to a standard useful for study or musical performance.
Also in the stops disposition, completions and additions are normally proposed which, while respecting the original material, greatly amplify the performance possibilities.
A precise aesthetic choice led - after various tests - to deliberately renounce sophisticated surround audio techniques, rather seeking absolute naturalness in sound rendering and above all pursuing the aim of giving the musician the opportunity to study articulation and phrasing in the most reliable and precise way.
Therefore in each set the user is normally given the possibility to freely change the proportion between direct and reverberated sound: you can virtually move closer or further away from the pipeworks until you find the best and most useful balance for study, performance or audio recording. It is possible to study and play with the precision of direct sound and then re-play via MIDI and listen again or record realizing the performance of the phrasing in the environmental acoustics.
This philosophy also has the advantage of producing sample sets with a relatively limited consumption of RAM memory compared to a very high sound quality.