Timothy Cobb

“A cake of your rosin is almost always present on my stand (and my colleague’s stands at the Met). With a four-thousand seat house to play to, we have to be able to crank out the sound, and that requires rosin that is going to grab the string dependably.Your rosin delivers, and that’s all there is to it. Last summer while serving as principal bass of the NY Philharmonic, I called you from Vail, CO needing some Kolstein rosin to revive my over-used bowhair… You kindly Fedexed some out, and saved the day! Tchaikovsky 4, if I remember correctly..!”

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Bassist Timothy Cobb joined the New York Philharmonic as Principal Bass in May 2014, after serving as principal bass of The Metropolitan Opera Orchestra, and principal bass of the Mostly Mozart Festival Orchestra since 1989. He has appeared at numerous chamber music festivals worldwide, including the Marlboro Music festival, through which he has toured with the Musicians from Marlboro series. A faculty member of the Sarasota Music Festival, he is helping to launch a new bass program for the Killington Music Festival in Killington, Vermont. Mr. Cobb also serves as principal bass for Valery Gergiev’s World Orchestra for Peace, an invited group of musicians from around the world who donate their time biannually and perform to promote international harmony. Mr. Cobb has been designated a UNESCO Artist for Peace from his affiliation with the World Orchestra. He has an ongoing collaboration with actor Stephen Lang, for whom he recorded a solo bass sound track for Mr. Lang’s animated short film The Wheatfield, which depicts a human drama from the Battle of Gettysburg. The two were invited to Gettysburg in July 2013 on the 150th anniversary of the battle to perform in the Salute to the States event held there, and they will continue to collaborate for future events. Mr. Cobb serves as bass department chair for The Juilliard School as well as on the faculties of the Manhattan School of Music, Purchase College, and Rutgers University. He is also a distinguished visiting artist for Lynn University in Boca Raton, Florida. A native of Albany, New York, Timothy Cobb graduated from The Curtis Institute of Music, where he studied with Roger Scott. While at Curtis, Mr. Cobb was a substitute with The Philadelphia Orchestra and in his senior year became a member of the Chicago Symphony Orchestra under Georg Solti. Mr. Cobb can be heard on all Metropolitan Opera recordings released after 1986, as well as on a recording of Giovanni Bottesini’s duo bass music with bassist Thomas Martin on the Naxos label.
Shlomo Mintz

“I have been more than pleased with all aspects of the Kolstein Violin rosin. It offers extremely low powdering, even adherence to the bow hair and a wonderful playing quality. I highly will recommend the Kolstein Violin Rosin to my colleagues and students.”

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Critics, colleagues and audiences regard Shlomo Mintz as one of the foremost violinists of our time, esteemed for his impeccable musicianship, stylistic versatility and commanding technique alike. Born in Moscow in 1957, he immigrated to Israel and studied the violin with Ilona Feher. At the age of 11, he made his concert debut with the Israel Philharmonic Orchestra and at the age of 16 he made his debut in Carnegie Hall with the Pittsburgh Symphony Orchestra, under the patronage of Isaac Stern. Since then he is a celebrated guest with orchestras and conductors on the international music scene, and has appeared with historical musicians like Sergiu Celibidache, Pablo Casals, Eugene Ormandy, Claudio Abbado, Lorin Maazel, Mistislav Rosptropovich and Carlo Maria Giulini. In the 2012/2013 Season, he celebrated his 50th anniversary with the National Orchestra of France in a special concert at the Champs Elysées Theatre as a conductor and a soloist. Mintz is also a co-founder of Violins of Hope, a project that aims to promote peace through music. He has won several prestigious prizes including the Premio Internazionale Accademia Musicale Chigiana, the Diapason D’Or, the Grand Prix du Disque, the Gramophone Award and the Edison Award. In 2006 he was awarded an Honorary Degree from the Ben-Gurion University in Beersheba, Israel. Http://www.shlomomintzviolin.com
Tina Guo

“I love my Kolstein Cello Rosin! I use it on both my fine bows with my classical cello, and on all four of my carbon fiber bows with my electric cello, with traditional horse hair and synthetic hair. The grip is wonderful and the cake is a wonderful size. I also love the beautiful gold packaging!”

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Tina Guo is an internationally acclaimed virtuoso acoustic/electric cellist, recording artist, and composer. With a multi-faceted career and mastery in a wide range of genres, her passion for musical exploration, artistic expression, and technology are expressed through live performance and visual media. Tina can also be heard as a featured soloist in many Blockbuster Film, Television, and Game scores. http://tinaguo.com
Byung Kook Kwak

“Kolstein viola rosin is my first and only choice. The sound and clarity that it gives is outstanding. I have relied upon it my entire career.”

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Professor of violin and viola at the Manhattan School of Music and acclaimed as one of the finest violinists of his generation, Byung Kook Kwak enjoys a multifaceted career as a soloist, chamber musician, conductor, and educator. Anthony Tommasini of the New York Times described him as “a distinguished artist” who “brought warm, penetrating sound and tasteful expressivity.” From coast to coast, critics have hailed him as a premier violinist whose musical gifts and technical wizardry are powerful and sensitive. Mr. Kwak has performed with orchestras throughout North America, Europe, Asia, and Scandinavia. Finalist and prizewinner of many international competitions, he was featured on PBS’s Live from Lincoln Center as a member of the renowned Sea Cliff Chamber Players. He has taught at Mannes College for 10 years as an assistant to Aaron Rosand and is currently a member of the Manhattan School of Music Precollege faculty and the faculty of Nyack College. In addition, he performs and gives master classes regularly in Seoul, Korea. Mr. Kwak maintains a busy conducting schedule as well. He has been the conductor of the Summit Music Festival Orchestra for the past five years; has conducted the Queens Symphony Orchestra; and from 1999 to 2006 conducted the Manhattan School of Music Summer Festival Orchestra. He has been engaged as a guest conductor with the Long Beach Symphony, South Shore Symphony, Yonkers Philharmonic, State Repertory Opera, and the Queens Symphony Orchestra, as well as the Orchestra of the Westchester Conservatory of Music. As a founder and artistic director of Solisti Ensemble, he has performed with the Ensemble in Carnegie Hall’s Stern Auditorium and Zankel Hall and in Lincoln Center’s Alice Tully Hall. He has also been active as a choral conductor for over thirty years and has led countless performances of Handel’s Messiah with the Central Presbyterian Church Choir where he is serving as a music director. Born in Seoul, Korea, Mr. Kwak was hailed as a child prodigy. He made his orchestral debut at the age of 7 with the Seoul Philharmonic. After earning many accolades and winning prestigious competitions in his native country, Mr. Kwak came to the U.S. and, at age 12, became one of Jascha Heifetz’s youngest students. He earned both his Bachelor of Music and Master of Music degrees from the Juilliard School, where he studied with Ivan Galamian and Dorothy DeLay. Manhattan School of Music Precollege faculty since 1992.
Thomas Martin

“Dear Barrie, Just a note to thank you so much for the rosin. I can see that you really put your heart and soul into perfecting it and I think it is great. I find it leads one into a slightly different way of bow/string contact which makes playing easier. I hope this finds you well.”

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International Principal Bassist, Luthier, Educator and Pedagogue
Tuomas Ylinen

“I´m using Kolstein rosin with great pleasure. It works very well with all kinds of different repertoire. I´m using it while playing in an orchestra and also when playing concertos. It gives you a great “bite” but also sensitive and colourful sound.”

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Principal cellist – Helsinki Philharmonic Orchestra
Frank Proto

“I’ve used the Kolstein Bass rosin for many years. I love the consistency that it gives me in bringing out the best my bows have to offer. An added bonus is that, with gentle care and handling, it will last for years before having to be replaced.”

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Famed Composer, Educator and Bassist
Peter Lloyd

“Through 35 years and thousands of orchestral, solo and chamber music performances, I have always turned to Kolstein rosin as the most dependable and classy rosin available. From the strongest attacks to the most nuanced articulations this is the rosin that will help provide the greatest range of expression for the music. I use it every day with great confidence and have enjoyed watching it expand my students abilities for many years.”

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Double Bass and Chamber Music The Colburn Conservatory Formerly, The Philadelphia Orchestra Principal Bass, The Minnesota Orchestra
Rufus Reid

“I have had a most rewarding experience with the Samuel Kolstein Ultra Bass Rosin – Soft grade. From the the first application to my bow, I was extremely happy with the total response and full-bodied sound I was producing. It has been a long time since I felt this confident about rosin. You don’t need much and it last for days. I am also impressed with the unique packaging with the rubber casing that just rolls down the cake of rosin for easy accessibility then zips back to protect the cake keeping the mold of rosin intact. As you all know, there are tons of rosin to buy, but if you care how you sound, you’ll want to check out the Kolstein Ultra Bass Rosin – Soft grade. ”

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Jazz Bassist/Composer
David Blackmon

“I find the Kolstein violin rosin to be the best rosin I have used in my 35+ years of being a professional fiddler/violinist. It is very unique in that it pulls a very smooth tone from my 4 and 5 string violins but is also capable of having the bite I need that is very controllable. It has great adhesion to the hair. I get much more playing time before I need to apply rosin again. It produces very little dust. I have tried many different brands, and some of them very expensive, but I find Kolstein violin rosin to be the best for me. May I suggest you try some too.”

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Dmitry Yablonsky

“I was so pleased to recently receive the Kolstein Cello Rosin, from my colleague Shlomo Mintz. As a long term user of a competitive cello rosin, it was not easy to convince me to try the Kolstein Cello Rosin. I must say it is quite something, and I am very impressed with the qualities of the Kolstein Cello Rosin. I will be happy to recommend the Kolstein rosin to my colleagues and students and look forward to using it in my future projects. “

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Dmitry Yablonsky has made more than seventy recordings, attaining accolades for his performances on cello, conducting accomplishments and as an educator on an international basis. He is Music Director of Kiev Virtuosi, Conductor Laureate of Jerusalem Symphony Orchestra and teaches at the Buchman-Mehta School of Music at Tel Aviv University. http://www.dmitryablonsky.com/
François Rabbath

“Bravo…..J’utilise votre colophane et je suis très satisfait.” (“Bravo…I use your rosin and am very satisfied”)

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James VanDemark

“Kolstein Ultra Bass Rosin has consistently been my rosin of choice. A powerful and clean sound, consistency, and ease of application are assured in each use by a great formula and its unique silicon cup packaging. “

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Professor of Double Bass Eastman School of Music
Pierre-Marie Lepage

“Bonjour M. Kolstein, Votre colophane pour alto est remarquable. Bien à vous. Pierre-Marie Lepage”(Hello Mr. Kolstein, Your viola rosin is remarkable. Yours.

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Tom Bresnick

“Bravo…..J’utilise votre colophane et je suis très satisfait.” (“Bravo…I use your rosin and am very satisfied”)

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Mirel Iancovici

“After having tried for decades almost every kind of rosin, from famous to less known ones, I came back to an old ‘love’, Kolstein rosin. Directness and yet warmth in sound, perfect adherence in sustained stroke as well as suppleness when playing bouncing bow stroke make the Kolstein Ultra Formulation Supreme Rosin a must which I recommend to all cellists including my own students.“

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Internationally Renown Cellist and Professor of Violoncello at the Maastricht and Brabant Conservatory (Holland).
Yuan Xiong Lu

“Kolstein Rosin provides exceptional depth of tone and responsiveness under the bow. I have always used it and recommend it highly to any bassist!”

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Professor of Double Bass Director of Chamber Music TCU School of Music