If your are looking for a catalogue the great American manufacturers, piano history or genealogy help, then this is the place for you. Please note that this is a working list and not all data is complete. Therefore, use this list as a starting point, and not as a final source. Information is intended for use in public libraries and educational institutions. 

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Look up spelling of brand name starting with the letters "X-Y-Z" XINGHAI, BEIJING PIANO CO. YA-KO PIANO MFG. CO. YAHRLING & BROWN YAHRLING & ROPNER YALE* YAMAHA YAMAHA (GA1E Grands) YANGLING YANIEWICS, FELIX YARDLEY* YARDSLEY YATES, HERBERT, & SON YINCON YOAKLEY YOHN, OLIVER & CO. YONG BROS. YORK YORKSTONE YORKVILLE YOSEMITE YOSOMITE YOULL YOUMANS & LEETS, NY YOUNG YOUNG AMERICA SQUARE YOUNG CHANG, YCA, INC. (China) YOUNG CHANG, YCA, INC. (Korea, Grands) YOUNG CHANG, YCA, INC. (Korea, Uprights) YOUNG, JOHN YOUNG-EMPORIA YOURLING* YUHLENOFF* YUNG CHANG YVON ZAHL, GEORGE ZAHN, F. H. ZANETTI ZANGENBERG, F. ZAPKA, J. & SON ZARI ZATLETAL, A. INOLMUTZ ZEBRAKOWSKY, JOHANN ZECCHINE OR ZECCINI ZECH & WACHTEL ZECH BROS ZECH, F. & CO. ZECH, JACOB ZECH, NORMAN F. ZECK, KARL ZEENGEN* ZEHLE ZEITTER & WINKELMANN, K.G. ZELLLMAN-SOCOL PIANO MFG ZELLMAN ZELLNER (by HADDORFF PIANO CO.) ZELLNER (Chicago) ZENABLES, C. L. ZENDER, SYDNEY ZENDINE ZEN ON GAKKI ZENGEN ZENSENBUSCH* ZENTES de JERONE ZENTI, GIROLAMA ZENTINE, AND ZENDINE ZENZENBERG ZEPLIN* ZERLINE* ZERTLE ZERTLER ZIEGLER & CO. ZIEGLERT ZIMMERING & SONS ZIMMERMAN (by STARR PIANO CO.) ZIMMERMAN (France) ZIMMERMAN, MATHIAS ORGANS ZIMMERMAN, W. ZIMMERMANN (Germany) ZOPPI, HANS B. ZUCKERMANN, W. J. ZUMPE & BUNTEBART ZUMPE, JOHANN ZURICH ZURICK & KELSO ZWALEN, LEWIS ZWICKI LOUIS ZYLOPHONE ZYRMA*