![Koehler, Forty Progressive Duets, Op. 55 [Alf:00-K02083]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/1280x1280/products/18507/39521/00-K02083__66777.1343063379.jpg?c=2 "Koehler, Forty Progressive Duets, Op. 55 [Alf:00-K02083]")
![Koehler, Forty Progressive Duets, Op. 55 [Alf:00-K02083]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/18507/39521/00-K02083__66777.1343063379.jpg?c=2 "Koehler, Forty Progressive Duets, Op. 55 [Alf:00-K02083]")
Forty Progressive Duets, Op. 55.
Ernesto Koehler.
Flute.
Series/Edition: Kalmus Edition.
First Published: 9/1999.
72 pages.
These duets range in difficulty from easy to intermediate.
Koehler, Forty Progressive Duets, Op. 55 [Alf:00-K02083]
Format: Book.
Distributed by Alfred Music Publishing
Usually ships in 1-7 business days depending on stock levels. Contact us for a more specific time estimate.
Ernesto Koehler.
Flute.
Series/Edition: Kalmus Edition.
First Published: 9/1999.
72 pages.
These duets range in difficulty from easy to intermediate.
Koehler, Forty Progressive Duets, Op. 55 [Alf:00-K02083]
Format: Book.
Distributed by Alfred Music Publishing
Usually ships in 1-7 business days depending on stock levels. Contact us for a more specific time estimate.
![Koehler, Twenty Easy Melodic Progressive Exercises, Op. 93, Volume I [Alf:00-K04496]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/14947/40414/00-K04496__79273.1343063614.jpg?c=2 "Koehler, Twenty Easy Melodic Progressive Exercises, Op. 93, Volume I [Alf:00-K04496]")
![Koehler, Twenty Easy Melodic Progressive Exercises, Op. 93, Volume II [Alf:00-K04497]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/14838/40415/00-K04497__86750.1343063614.jpg?c=2 "Koehler, Twenty Easy Melodic Progressive Exercises, Op. 93, Volume II [Alf:00-K04497]")
![Barret, Forty Progressive Studies [Alf:00-K02133]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/17785/39562/00-K02133__56608.1343063388.jpg?c=2 "Barret, Forty Progressive Studies [Alf:00-K02133]")
![Koehler, Twenty-five Romantic Etudes, Op. 66 [Alf:00-K04495]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/15278/40413/00-K04495__42862.1343063613.jpg?c=2 "Koehler, Twenty-five Romantic Etudes, Op. 66 [Alf:00-K04495]")
![Spohr, Duet, Op. 13 [Alf:00-K04661]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/11792/78009/00-K04661__83158.1343340761.jpg?c=2 "Spohr, Duet, Op. 13 [Alf:00-K04661]")
![Pleyel, Duets, Op. 8 [Alf:00-K04643]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/17750/78208/00-K04643__70716.1343340821.jpg?c=2 "Pleyel, Duets, Op. 8 [Alf:00-K04643]")
![Kohler, Progressive Flute Duets (40) Op.55 Vol.1 [Pet:ZM10921]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/130020/169749/peters__18335.1347921100.jpg?c=2 "Kohler, Progressive Flute Duets (40) Op.55 Vol.1 [Pet:ZM10921]")
![Kohler, Progressive Flute Duets (40) Op.55 Vol.2 [Pet:ZM10922]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/130021/169750/peters__60040.1347921100.jpg?c=2 "Kohler, Progressive Flute Duets (40) Op.55 Vol.2 [Pet:ZM10922]")
![Concone, Forty Lessons, Op. 17 [Alf:00-K09156]](https://cdn11.bigcommerce.com/s-2c893/images/stencil/500x659/products/18310/40903/00-K09156__15322.1343063771.jpg?c=2 "Concone, Forty Lessons, Op. 17 [Alf:00-K09156]")