Context: From September 1823 to 1826 Chopin attended the Warsaw Lyceum, where he received organ lessons from the Czech musician Wilhelm Würfel during his first year. In the autumn of 1826 he began a three-year course under the Silesian composer Józef Elsner at the Warsaw Conservatory, studying music theory, figured bass and composition.[n 3] Throughout this period he continued to compose and to give recitals in concerts and salons in Warsaw. He was engaged by the inventors of a mechanical organ, the "eolomelodicon", and on this instrument in May 1825 he performed his own improvisation and part of a concerto by Moscheles. The success of this concert led to an invitation to give a similar recital on the instrument before Tsar Alexander I, who was visiting Warsaw; the Tsar presented him with a diamond ring. At a subsequent eolomelodicon concert on 10 June 1825, Chopin performed his Rondo Op. 1. This was the first of his works to be commercially published and earned him his first mention in the foreign press, when the Leipzig Allgemeine Musikalische Zeitung praised his "wealth of musical ideas".

Question: During what years did Frédéric visit the Warsaw Lyceum for lessons?
Answer: 1823 to 1826

Question: Who was Frédéric a student of involving music theory starting in 1826?
Answer: Józef Elsner

Question: What was the name of the mechanical organ Frédéric performed on during 1825?
Answer: eolomelodicon

Question: Which tsar did Frédéric perform for due to his success in previous concerts?
Answer: Alexander I

Question: On what date was Frédéric's first performance that earned international esteem?
Answer: 10 June 1825

Question: Who taught Chopin to play the organ?
Answer: Wilhelm Würfel

Question: Chopin had three years of lessons with whom?
Answer: Józef Elsner

Question: What instrument did Chopin play in front of Tsar Alexander I?
Answer: eolomelodicon

Question: What gift did Tsar Alexander I give to Chopin?
Answer: diamond ring

Question: What was the first of Chopin's works to gain international renown? 
Answer: Rondo Op. 1

Question: Who gave Chopin instruction on how to play the organ?
Answer: Wilhelm Würfel

Question: What was the name of the teacher of Chopin's three year course that began in the fall of 1826?
Answer: Józef Elsner

Question: What is th ename of the mechanical organ Chopin played in 1825?
Answer: eolomelodicon

Question: What did Tsar Alexander I give to Chopin?
Answer: a diamond ring.

Question: What is the title of his first commercially successful work?
Answer: Rondo Op. 1.