Harmonie Mastering welcomes you to Blanzat, in the heart of Auvergne, in France, in a small and quiet village surrounded by vineyards and orchards. An ideal place for a mastering studio.

Kato Rodriguez, musician, composer, singer, multi-instrumentalist and conductor for over 30 years. “In addition to my university career in composition, orchestration and direction, my passion for sound led me to follow sound engineer training courses in France and Spain. This allowed me to produce all the albums composed with my band but also with other musicians and choirs with whom I’ve worked in France, South America – Argentina, Chile, Peru – and Japan “.

Harmony between artistic listening of the musician (rendering of emotions) and analytical listening (art of sound) for an accurate, successful and expected production.

An experienced ear, very aware to all styles of music.
An acoustically treated professional room, a monitoring system and very high-end analog and digital equipment.
“I am at your disposal to get to know you, share your passion, build and finalize your audio mastering project in the best conditions”.

Mastered at Harmonie Mastering


AC Regenerator PS-Audio Perfectwave Power Plant p10

Monitoring :

Dutch & Dutch 8c Cardioid Speakers

Focal clear pro

Harware :


Knif Soma Mastering EQ

Manley Massive Passive versión Mastering

Crane Song Ibis

Dangerous Music BAX EQ

Aml ezP1A – Pultec


Shadow Hills Industries Mastering Compressor

LAAL (Look Ahead Analog Limiter)

Rockruepel limit-one

FCS Foote Control Systems P4S ME

Fairchild 670 (clone Stamchild 670)

Consoles & VU meter

Maselec MTC-1X

Kahayan Epsilon 32-500 Analog Summing Mixer

TC Electronic Clarity M

Master Clock

Antelope Audio Isochrone OCX HD

Converter : AD/DA

Crane Song Hedd Quantum

Lavry Engineering AD-24-200 Savitr


Merging Anubis SPS – DSD/DXD

RME ADI-2 Pro Fs

Digital Workstation :

iMac Pro 3,7 GHz – 64 Go DDR

MacBook Pro 15″ Core i7

Pro Tools


Wavelab Pro 10

Weiss DS1-MK3 softube

Universal Audio UAD-2 Satellite

Izotope RX 7


Izotope Ozone 9

Cables :


Grimm TPR


Professional analog mastering
– CD mastering with DDP image
– Mastering for Streaming (Spotify, Youtube, I’tunes …)
– Mastering Hi-Res 24bit / 96kHz – 192kHz
– Stem Mastering
– Audio restoration


Our online mastering service, through simple and easy-to-use tools, is aimed at musicians and producers from all around the world. It offers the best guarantees in accordance with international standards: a taylor made service on each project in a highly technical environment, facilitated communication with permanent exchanges in order to get the best result.
Each production received goes through artistic and analytical listening in order to determine its strengths and weaknesses. Then, a processing chain is established according to the musical genre, with very high level analog and digital equipment to obtain the best sound.


To be sure that our mastering service meets your expectations, we offer you the possibility of carrying out a free demonstration of one of your titles. To do so, send us your file via “WETRANSFER”  You will receive within three days an extract of the mastering of your title at 3/4.

When sending your file, remember:
– WAV or AIFF format, 16, 24 or 32 bits (we do not perform mastering from MP3 archives).
– your file must have the same sampling frequency as when it was created (recording and mixing).
– peak level: -6 dbfs
– remove any equalizer, limiter, maximizer from the master bus

If you wish you can send a reference track that best meets your expectations.


Our prices are decreasing according to the quantity of titles.
Do not hesitate to contact us: info@harmoniemastering.com
– Mastering stereo: 60 € / title
– Stem mastering analog summing (maximum 8 stems): 80 € / title
– DDP image for pressing: 35 € / album

Each service includes:
Personalized treatment on analog equipment (individual settings for each title).
The files are provided in 24 bit 96 kHz (high resolution), in 16 bit 44.1 kHz (CD quality) and in mp3 320 kbps (other formats on request).
Two series of touch-ups


In what format should I deliver my mix?

We prefer 24-bit files. The most commonly used file format is WAV or AIFF, 16, 24 or 32 bit. Please export your mixes with the same sample rate and resolution as your original project. If you are working at 44.1 kHz, 48 kHz or 96 kHz, export your mix at the same sampling frequency.
The MP3 format is not suitable.

What conditions must be fulfilled before sending my material?

The first and most important condition is that you are fully satisfied and convinced of your mix before considering mastering.
Check that the peak level is between – 6 dbFS and – 4 dbFS.
Please remove any equalizer, limiter, master bus maximizer.
If you have mixed with a treatment (compression, limitation …) you can send us this version which we will use as a reference but be sure to send a version without treatment to carry out the mastering.
All your mixes must have 2 seconds of silence at the beginning and at the end.
In the case of a track with a long fad-out, the mix must be sent without this effect, but please send us also an audio example of the fad-out you’re looking for.

How can I send you my mix?

You can send your mix via WeTransfer. Make sure to add the track title, your name, your email address, so that we can identify the received track and identify you as a customer.

What other information is needed in the case of CD mastering?

The information should be as complete as possible:
– name of group or artist
– album, EP, project name
– song titles and desired order
– ISRC / UPC / EAN metadata
For any complex timing or fade, a WAV or MP3 reference, indicating how the titles should be linked, is necessary.

What is the delivery lead-time ?

Usually, 4 days for an album and 1 to 2 days for a single.



What if I'm not happy with the result?

In the unlikely event that you are not convinced by the mastering, we offer free revisions, within reason, to obtain your complete satisfaction.


A dynamic or overwhelmed mastering?

The war of volume is over! There is no need to compress and limit your music as much as possible to compete with other productions. Today online music platforms have implemented a volume normalization system during playback. A dynamic and less overwhelmed track will set it apart from other productions. On the contrary, a track having been mastered at excessive levels will be automatically compressed during playback. Thus, the track will have less volume, less dynamics and will be overwritten.

What is a DDP image?

DDP stands for Disc Description Protocol. It is a format used for the secure transfer of the master to the CD pressing plant. The DDP image will be used to insert the titles in the order established by the client and will include breaks, faders, codes, ISRC, UPC / EAN data. The DDP image will comply with the RED BOOK standard so that it can be read by the factory technician for CD pressing. A DDP reader will be delivered to the client for listening to the project, verification and validation.

What does ISRC code mean?

International Standard Recording Code (ISRC) is the international system for identifying audio and video recordings. Each ISRC is a unique and permanent identifier, such as a fingerprint, for a specific record.
The ISRC automatically identifies audio and video recordings in order to receive royalties.
You must contact the ISRC supplier in your country to obtain this code.

What payment methods for mastering?

Payment can be made by bank transfer or via Paypal.
If you wish to pay via bank transfer, you will receive your invoice by email with the bank identifiers allowing the transfer.

Paypal payment: perso@katorodriguez.com

Payment must be made in advance.




To send your files, “click here”.

Please complete the following form:

WhatsApp : +33 (0)6 22 31 10 56

email : info@harmoniemastering.com

65 Rue de Rode



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