本文探討之主要人物卡格－埃勒特（Sigfrid Karg-Elert, 1877-1933），出生於文化樣貌多變的十九世紀末期，而他的一生，更橫跨了二十世紀的現代風格，因此卡格埃勒特所創作風格，融合了古典至近代的諸多創作語法，他的作品也被後世認為是銜接古典至近代音樂的橋梁。卡格－埃勒特是位多產的作曲家，他以獨特的和聲色彩創作大量的樂曲，其中則以簧風琴（Harmonium）及管風琴（Organ）最為代表，而本文所探討的《降B大調長笛奏鳴曲 作品121》為卡格－埃勒特軍旅時期所寫下的作品，在其中就可以看到他對鍵盤樂器的器重，整體風格多樣化，從田園般的旋律到靈巧的舞曲皆有所涵蓋。本文筆者將依研究動機及範圍、卡格－埃勒特的生長背景、卡格－埃勒特的創作語言、《降B大調長笛奏鳴曲 作品121》的分析與詮釋及本文之結語等共五個章節，詳細探討卡格－埃勒特的創作理念，進而活用於樂曲的詮釋之中。

The main character of the article is surrounded by Sigfrid Karg-Elert(1877-1933). Karg-Elert was born in the late 19th century, the era which brewed out a modernism of the 20th century. Down to the classical period and up to the present, he mixed up multiple music languages that he had absorbed and transformed to his unique compose style. That’s the reason his works have been regarded as the connection of the classic and modern composition style. Karg-Elert had huge amounts of works, he composed these by his unique harmonic skills, and most of them were harmonium and organ songs. This article is going to focus on his Sonata in Bb major for flute and piano, op.121. This flute piece was written in his enlisted period. In the song, we can figure out the significance of keyboard music to him, and also the variety compose style was used to change the atmosphere of music, from pastoral melody to rhythmic notes were all included.This article would be divided in five chapters to deeply investigate the concept of Karg-Elert’s composition. They are motive and range of the investigation, the life about Sigfrid Karg-Elert, Karg-Elert’s music language, the analysis and interpretation of Sonata in Bb major for flute and piano, op.121, and the conclusion.

中文書目：
葉綠娜，陳玫琪，陳樹熙等 譯，邁可．甘迺迪編。《西洋音樂百科全書：牛津音樂辭典（The Oxford Dictionary of Music》，台北：台灣麥克股份有限公司，
2000。
楊沛仁。《音樂史與欣賞》。台北：美樂，2001。

外文書目：
Fabrikant, Harold, comp. Your Ever Grateful, Devoted Friend: Sigfrid Karg-Elert’s letters to Godfrey Sceats 1922-1931. Victoria: Dr Harold Fabrikant, 2000.
Fabrikant, Harold, comp. The Harmony of Soul: Sigfried Karg-Elert’s letters“To His Australian Friends.”Lenswood, South Australia: Academy Press, 1966.
Douglas Worthen“Exotic Impressions,” Douglas Worthen: Flute, Janice Weber: Piano, 1993.
Grace, Harvey. “The Karg-Elert Festival: A Talk with the Composer.” Musical Times 71, no. 1048 , 1930.

英文論文：
Stephanie DiMauro. “The Flute and Piano Works of Sigfrid Karg-Elert: An Analytical and Contextual Study”, 2014.
Worthen, Douglas. “Sigfrid Karg-Elert’s Flute Works.” Flute Talk 13 no. 1 , 1993.

中文論文：
韓健峰。《卡格－埃勒特單簧管無伴奏奏鳴曲編號110》。國立台灣師範大學音樂學系研究所碩士論文，2005。
蕭涵瑾。《卡格－埃勒特無伴奏長笛奏鳴曲“熱情”之樂曲分析與演奏詮釋》。國立台北教育大學音樂學系研究所碩士論文，2009。
蔡佳穎。《卡格－埃勒特：降B大調長笛奏鳴曲，作品121》。台北市立教育大學音樂學系研究所碩士論文，2010。
蔡涵羽。《卡格－埃勒特“點描組曲”，作品135》。私立輔仁大學音樂研究所碩士論文，2017。

樂譜：
Impressions exotiques, opus 134. Frankfurt: Zimmermann, 1920.
Suite pointillistique, opus 135. Frankfurt: Zimmermann, 1920.
Sinfonische Kanzone, opus 114. Preface by Alwin Wollinger. Frankfurt: Zimmermann, 2010.
Sonate B-dur, opus 121. Frankfurt: Zimmermann, 2011.

網路資源：
https://www.oxfordmusiconline.com./subscriber/article/grove/music/14710.
http://www.karg-elert-archive.org.uk/