She learned from a friend, to whom she had written for advice, that the pianist had promised soon to visit her at her home in Wiesbaden, and it was suggested that the MacDowells pay her a visit at the same time, and thus benefit by the opportunity of becoming acquainted with Heymann. Mrs. MacDowell and her son were not slow to avail themselves of this proposal, and the end of the year 1878 found them in Wiesbaden. Here they met Heymann, who had just concluded a triumphantly successful tournée of the European capitals. They heard him play, and were impressed by his mastery and poetic feeling. Heymann was not, however, to begin teaching at the Frankfort Conservatory until the following autumn, so MacDowell remained in Wiesbaden, studying composition and theory with the distinguished critic and teacher, Louis Ehlert, while his mother returned to America.

MacDowell at eighteen (the figure at the extreme left of the group) as a member of Raff's class at the Frankfort Conservatory

"Ehlert," MacDowell has written, "was very kind to me, and when I asked him for 'lessons' he refused flatly, but said he would be glad for us to 'study together,' as he put it. This rather staggered me, as my idea in leaving Paris was to get a severe and regenerating overhauling. I worked hard all winter, however, and heard lots of new music at the Cur Haus, which was like manna in the desert after my long French famine. Ehlert, who thought that Heymann was not the man for me, spoke and wrote to Von Bulow about me; but the latter, without even having seen me, wrote Ehlert a most insulting letter, asking how Ehlert dared 'to propose such a silly thing' to him; that he was not a music teacher, and could not waste his time on an American boy, anyway. So, after all, I went to Frankfort and entered the conservatory." MacDowell's first interview with Raff, in the autumn of 1879, was, as he relates, "not promising." "Heymann took me to him and told him, among other things, that, having studied for several years the 'French School' of composition, I wished to study in Germany. Raff immediately flared up and declared that there was no such thing nowadays as 'schools'—that music was eclectic nowadays; that if some French writers wrote flimsy music it arose simply from flimsy attainments, and such stuff could never form a 'school.' German and other writers were to be criticised from the same standpoint—their music was bad, middling, or good; but there was no such thing as cramping it into 'schools' nowadays, when all national musical traits were common property."

MacDowell remained in the Conservatory for two years, studying composition with Raff and piano with Heymann. His stay there was eminently satisfactory and profitable to himself. He found both Raff and Heymann artistic mentors of an inspiring kind; in Raff, particularly, he encountered a most sympathetic and encouraging preceptor, and an influence at once potent and engrossing—a force which was to direct the currents of his own temperament into definite artistic channels.

For Heymann as a pianist MacDowell had a fervent admiration. He spoke of him as "a marvel," whose technique "seemed mysteriously capable of anything." "When I went to him," MacDowell has said, "I had already transposed most of the fugues and preludes of Bach (Paris ideas of 'thoroughness'!) and had gone through much rough technical work. Heymann let me do what I wanted; but in hearing him practise and play I learned more in a week than I ever had before." When Heymann, who had already begun to show symptoms of the mental disorder which ultimately overcame him, left the Conservatory in 1881, he recommended MacDowell as his successor—a proposal which was cordially seconded by Raff. But there were antagonistic influences at work within the Conservatory. MacDowell's candidacy was opposed by certain of the professors, on account, it was said, of his "youth"; but also, doubtless, because of the advocacy of Heymann, who was not popular with his colleagues; for he dared, MacDowell has said, "to play the classics as if they had been written by men with blood in their veins." So MacDowell failed to get the appointment. He continued, unofficially, as a pupil of Heymann, and went to him constantly for criticism and advice.

MacDowell began at this time to take private pupils, and one of these pupils, an American, Miss Marian Nevins, was later to become his wife. He was then living in lodgings kept by a venerable German spinster who was the daughter of one of Napoleon's officers. She was very fond of her young lodger, and through her he became acquainted with the work of Erckmann-Chartrian, whose tales deeply engrossed him at this time. Later he moved to the Café Milani, on the Zeil, at that time an institution of considerable celebrity. As a teacher he made a rather prominent place for himself; the recommendation of Raff—who had said to one of MacDowell's pupils that he expected "great things" of him—had helped at the start, and his personality counted for not a little. His appearance at this time (he was then nineteen years old) is described as having been strikingly unlike that of the typical American as known in Germany. "His keen and very blue eyes, his pink and white skin, reddish mustache and imperial and jet black hair, brushed straight up in the prevalent German fashion, caused him to be known as 'the handsome American.'" Teaching at that time must have been a sore trial to him. He was, as he continued to be throughout his life, painfully shy; yet he seems, strangely enough, to have had, even then, the knack for imparting instruction, for quickening the interest and stimulating the enthusiasm of those who came under his guidance, which in later years made him so remarkable a teacher.

In 1881 MacDowell applied for the vacant position of head piano teacher at the Conservatory in the neighbouring town of Darmstadt, and was engaged. He found it an arduous and not too profitable post. He has described it as "a dreary town, where the pupils studied music with true German placidity." They procured all their music from a circulating library, where the choice of novelties was limited to late editions of the classics and a good deal of sheer trash, poor dance music and the like. His work, which was unmitigated drudgery, consumed forty hours a week. For a time he took up his quarters in Darmstadt; but he missed the attractions of Frankfort; so throughout his term he travelled on the railroad twice daily between the two towns. In addition to his regular work at the Conservatory, he undertook private lessons, going by train once a week to the Erbach-Fürstenau castle at Erbach-Fürstenau, a wearisome three-hour journey. The castle was a mediæval Schloss, with a drawbridge and moat. There his pupils were little counts and countesses, discouragingly dull and sleepy children who spoke only German and Latin, and who had the smallest interest in music. MacDowell gave them lessons in harmony as well as piano-playing, and one day, in the middle of an elaborately simplified exposition of some rudimentary point, he heard a gentle noise, looked around from the piano, and discovered his noble young pupils with their heads on their arms, fast asleep. MacDowell could never remember their different titles, and ended by addressing them simply as "mademoiselle" and "monsieur," to the annoyance of the stern and ceremonious old châtelaine, the Baroness of Rodenberg.

The twelve hours a week which he spent in railway travelling were not, though, wholly unprofitable, for he was able to compose on the train the greater part of his second "Modern Suite" for piano (op. 14). This was the second of his compositions which he considered worthy of preservation, its predecessor being the "First Modern Suite," written the year before in Frankfort. Much other music had already found its way upon paper, had been tried in the unsparing fire of his criticism, which was even then vigorous and searching, and had been marked for destruction—a symphony, among other efforts. His reading at this time was of engrossing interest to him. He was absorbed in the German poets; Goethe and Heine, whom he was now able to read with ease in the original German, he knew by heart—a devotion which was to find expression a few years later in his "Idyls" and "Poems" (op. 28 and 31). He had begun also to read the English poets. He devoured Byron and Shelley; and in Tennyson's "Idyls of the King" he found the spark which kindled his especial love for mediæval lore and poetry. Yet while he was enamored of the imaginative records of the Middle Ages, he had little interest, oddly enough, in their tangible remains. He liked, for example, to summon a vision of the valley of the Rhone, with its slow-moving human streams flowing between Italy and the North, and with Sion still looking down from its heights, where the bishops had been lords rather than priests. But this was for him a purely imaginative enchantment. He cared little about exploring the actual and visible memorials of the past: to confront them as crumbling ruins gave him no pleasure, and, as he used to say, he "hated the smells." It was this instinct which, in his visits to the cathedrals, prompted him to stand as far back as possible while the Mass was being said. To see in the dim distance the white, pontifical figures moving gravely through the ritual, to hear the low tones, enthralled and stirred him; but he shrank from entering the sacristy, with its loud-voiced priests describing perfunctorily the relics: that was a disillusionment not to be borne with.