Volume 1 of the 'Celtic Tunes' collection features versions for various instruments, each volume presenting a selection of 20 beautiful songs from various regions of Celtic culture such as Ireland, England, Scotland, Wales, Brittany, Galicia, and also from colonies that have maintained these traditions like the USA, Canada, and Australia. The songs have been edited into duets for playing with cello or any other bass-clef instrument (C1 to A3), with 3 keys for each piece. The first key is always in the 1st position (great for beginners), and the others increase in difficulty, accommodating both beginners and advanced players, and offering variety for set arrangements.

     The sheet music also includes chords for accompaniment, arrangements, or to facilitate improvisation.

     Volume 1 of the 'Nordic Tunes' collection, featuring versions for various instruments, includes a selection of 20 stunning pieces from Sweden, Norway, Denmark, Finland, and Iceland, along with instructions for performance and arrangements. The pieces have been edited into duets for playing with cello or any other bass-clef instrument (C1 to A3), offering 3 keys for each piece. The first key is always set in the 1st position (excellent for beginners), while the others increase in difficulty, making each piece suitable for both beginners and advanced players, and adding variety to set arrangements.

     The sheet music is enhanced with chords for accompaniment, arrangements, or to aid improvisation.

     Volume 1 of the 'Medieval Music' collection, available for various instruments, includes a selection of 12 splendid medieval songs in each volume, along with a lengthy article on medieval history, historical research, and instructions for performance and arrangements. The sheet music is enhanced with chords for accompaniment, arrangements, or to encourage improvisation, and vocal pieces are accompanied by lyrics in original ancient languages like medieval French, Galician-Portuguese, and medieval Latin. The pieces, both instrumental and songs, are derived from original period notations as solos or duets, playable on cello or any other bass-clef instrument (C1 to A3), offering 3 keys for each, with the first always in the 1st position (ideal for beginners), while the others increase in difficulty, catering to both beginners and advanced players, or adding variety in set assembly. The sheet music also includes chords for accompaniment, arrangements, or to encourage improvisation.