When eleven years old, Ingeborg began harmony with the composer Decker. She progressed quickly, and in her first concert, given a year later, was able to present creditable work of her own. Her success was decisive, and critics and public united in foretelling her great future. From that time on she gave annual concerts with orchestra, meeting growing favour. Meanwhile her composition was not neglected; beginning by publishing three etudes, a tarantelle, and a nocturne for piano, she continued with sonatas, fugues, and songs. She won the interest of the musical circles, including Rubinstein, and through Von Martinoff she became the pet of the Russian aristocracy. When that protector was called away by the Crimean War, he left her in the care of Adolf Henselt, and after two years with the new master, she was sent by him to finish her studies under Liszt, then long famous as leader of the gifted musical circle of Weimar. When she came to him, an eighteen-year-old girl, endowed with all the fair beauty of her northern land, she gave him as proof of her proficiency some of her piano fugues. The experienced master rather doubted if the charming apparition before him could produce such an intricate work as a fugue without receiving aid, so he gave her a new theme and requested her to write another fugue upon it. Nothing daunted, she started at once, and, in a short while, she handed him the manuscript. He played it through, and acknowledged its merit with the remark, "Well, you don't look at all like it." Instantly came the reply, "I am very glad I don't look like a fugue." Ingeborg became one of his few chosen favourites, and soon all Weimar worshipped her as St. Petersburg had done before. With Liszt she remained two years, devoting herself chiefly to piano, and composing a sonata only as a diversion. She speaks warmly in praise of the great tone-poet's influence. "His guidance," she says, "prevented me from being one-sided in art, and the example of his wonderful nature taught me to seek and absorb the beautiful in music everywhere, no matter what school its composer belonged to." While under Liszt's care, she appeared at court, and made successful debuts in Dresden, Paris, and the Leipsic Gewandhaus. Under Liszt also was Hans von Bronsart, who had known Ingeborg in St. Petersburg, and who now was fortunate enough to win her love and become her husband. The next few years were devoted to performing, and numerous tours brought equally numerous triumphs. Composition was not neglected, and a piano concerto of fair success was the result of this period. At this time her dramatic efforts began, and the three-act opera, "Die Goettin von Sais," was the first result. The music of this work was excellent, but the libretto lacked action, and no stage performance was ever given.