Orchestral Tools and Mastering.com are giving away one premium SINEplayer instrument of your choice until October 31, 2026.
There are five instruments to choose from, with regular prices ranging from €20 to €50. Use the voucher code ot-x-masteringcom-2026 during checkout to reduce your selected instrument to €0.
Unlike Orchestral Tools’ permanently free SINEfactory catalog, these are individual instruments taken from larger paid collections. Once redeemed, your selection is added to My Licenses in your Orchestral Tools account.
The highest-priced option is the €50 String Quartet from Salu. It features two violins, viola, and cello performed by the M4GNET quartet at the Arvo Pärt Centre in Estonia.
This is a pretty versatile choice, with six microphone positions and articulations covering sustains, legato, portato, staccato, spiccato, pizzicato, tremolo, crescendos, swells, arpeggios, and more experimental repetitions and flybys.
The €20 Ronroco comes from the Andea collection. This ten-string, mandolin-like South American instrument was performed by composer and multi-instrumentalist Richard Harvey, with four microphone positions and articulations including sustains, portatos, staccatos, bends, trills, chords, tremolos, and dead notes.
If you need serious low-end brass, Koenigsberger Cimbassi a3 normally costs €46. The three-player cimbasso ensemble comes from Metropolis Ark 1 and was recorded at Berlin’s Teldex Scoring Stage with four microphone positions. Its articulations include sustains, two marcato lengths, staccatos, crescendos, flutter crescendos, and swells.
The €48 Piccolo Flute is taken from Berlin Woodwinds. It offers six microphone positions, true legato, playable runs, sustains, marcatos, staccatos, repetitions, and several trill variations.

Forest is the most sound-design-focused choice and easily my favorite. It’s normally priced at €29, and comes from Dominik Eulberg’s Habitat and blends analog synthesizers with orchestral recordings. Eight patches cover every season during the day and night, while the mod wheel morphs between the electronic and acoustic layers.
To claim your free instrument, visit the promotion page, add one option to your cart, and continue to checkout. Log in to your Orchestral Tools account or create one, enter the code ot-x-masteringcom-2026, and confirm that the total changes to €0 before completing the order.
Your new library will appear under My Licenses in the free SINEplayer. If this is your first Orchestral Tools instrument, you can also explore the company’s permanently free SINEfactory libraries after installing the player.
SINEplayer supports standalone, VST, VST3, AU, and AAX formats on macOS 10.15 or later and 64-bit Windows 10. Orchestral Tools lists 8 GB of RAM as the minimum and recommends 16 GB or more.
More info: Orchestral Tools and Mastering.com instrument giveaway (FREE until October 31, 2026)
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Last Updated on August 28, 2026 by Tomislav Zlatic.





