BP2064 Hotteterre's 2nd Suite arranged for 2 Alto Recorders. 

BP2060  

Trio Sonatas 1-2 from Simonetti's Op. 2. Simonetti is a pseudonym used by Winfried Michel.

BP2005 "La Gallina, il cuccù e l'asino"

These pieces are for various combinations of recorders using soprano through to bass.

From Pieces en Trio 1692

From L'estro Harmonico. Score only

Top parts also suitable for flute or oboe

Bach's 15 Inventions (BWV 772-786) arranged for Recorder Duet (AT).

ZO2100201 Trio for Recorder Trio (ATB) by Japanese composer Yasuji Kiyose.

ZO2100252 The third volume of Recorder Quartets presenting renaissance dances for various combinations (SATB/SAAT/SAAB/SSAB/SSTB/AATB/STTB) Content...

ZO2100247 French Baroque Flute Duets arranged for Alto Recorders. Contents: N. Chédeville Sonate "L' Allemande, L' Impératrice La Palatine Musett...

Two Suites for 2 Theorbos by Robert de Visée, first published in Paris, 1716.

UOEHS87 6 Sonatas, Op.10 for 2 Viols by  Joseph de Bodin Boismortier Cotents: Sonata I in e minor Sonata II in A Major Sonata III in g minor Sonat...

OFB138 Suite in g minor for 2 Alto recorders and Continuo by French composer Marin Marais.

11 Duets for Descant and Alto Recorders by Harald Genzmer. Contents: Moderato Andantino Comodo Cantilene Moderato Tranquillo Caprice Fuge Dialog M...

OFB129 Harald Genzmer's Tanzstucke or 8 Dance Pieces (GeWV 267) for 2 Treble Recorders.

OFB120 Divertimento for Recorder Trio (SAT) by Hans Gál. I Melodia II Rigaudon III Rondino

OFB109 Trio in g minor (TWV 42:g9) for Treble Recorder, Violin and Continuo. I Suave ma non adagio II Vivace III Largo IV Allegro

OFB106 Trio Sonata in F Major (TWV 42:F7) for 2 Treble Recorders and Continuo by Georg Philipp Telemann. I Affetuoso II Allegro III Adagio IV Vivace