"I'm really pleased with the Eb bell remount. The horn plays great and the valves are working fine. Your work is superb, and it's been a pleasure to do business with you. I won't hesitate to recommend your services."

Cathy Sheridan

"Thanks for the great service and time you spent listening to me play and talk about the trumpet. I come from a family of master machinists so I know a little about soldering and other metalwork. The work I saw on your workbench is top notch, best soldering since I saw Steve Shires do a modification for me at Osmun Brass 20 years ago."

Kenneth S. Pfabe
US Navy Band

"I must say that I am VERY impressed with the job that you did. You exceeded my expectations !!!.  If you ever need a reference, feel free to give out my name!". 

Steve K. Bone


"Wow! What an amazing job you have done on the Harrelson!!! It is a vast improvement over the 'original' design. I guess now I'll call the horn a Harrelson/Cromer/Gnocchi horn.... Incredible workmanship!!!!! I'll admit now that I was a bit skeptical that someone as young as you could be a "seasoned" craftsman....I doubt no more!!!!  The horn looks good and SOUNDS much better too...….. Thank you very much for doing an amazing job...there will be a few other of my horns coming your way..."

Claude G.  

"I sent this horn and my Bach bell to Chris Cromer of A minor Tune Up. Chris made me a tuneable bell trumpet and added amato waterkeys. The horn is great. I love it - it has nice warm, fat sound. Chris is a excellent craftsman. His workmanship is beautiful. He has also done some great work on my Selmer Piccolo. If you are looking for a good, talented, and careful craftsman, contact Chris."

Wayne Andrus

"Chris, The flugel arrived today and it looks (and feels) great! Thanks for doing a good job on it! I've let my students and colleagues know about you, so maybe they will send some work your way. I certainly will when the next project is ready."

William Posey
Director of Concert & Support Services
James Madison University


"Hey Chris,  thanks again for the great work on the C.  It's good to have a fine craftsman such as yourself close by.  Keep up the good work and I'll spread the word up here.

Jeff Curnow
Philadelphia Orchestra


"For excellent repair on your personal treasure (your horn), and friendly customer service
trust Chris Cromer at A minor Tune Up, I do."

Dontae Winslow
Justin Timberlake & TNKids


"Whatever I've needed; major repair, minor repair, or cleaning, A "minor" Tune Up has always provided outstanding work with great customer service.  Thanks Chris…I'll see you soon (yes, my horn is that dirty…again)."

Joey Tartell
Associate Professor of Trumpet
Indiana University Bloomington


"Found myself on the road passing through Chris' town.  TSA managed to drop my horn & crushed it while they were looking through my valve oil.  After bringing it to Chris, it ended up working better than before!"

Asdru Sierra
Trumpet & Lead vocals


“There is a short list of people that I will let work on my horns and fortunately for me A minor Tune Up is at the top of that list.”

Johnny Christmas
Reel Big Fish


“I’ve known Chris for a number of years and I only trust him with my horns.  Not only is he great with repairs and modifications, he knows trumpets!!  I live very close and it is easy for me to drop in and play some horns or try some mouthpieces and just talk shop with him.  He is always very accommodating and works around my schedule.  I love to bounce ideas off of him and know that I’m getting a knowledgeable response…and one I can trust.“

Rob Zinn
Recording Artist