She studied music at the Guildhall School in London, England[3] and later worked as a lecturer at the City of London School.[5] In 1895 she was giving music lectures at the City School of London.[2]
As a composer, Swepstone wrote early 20th-century orchestral music, chamber music, and songs.[2] During the first quarter of the 20th century, she had many of her orchestral works performed by the Bournemouth Municipal Orchestra, the most by a single composer.[2] Though the music is not located, 14 of Swepstone’s orchestral works were presented in a total of 24 performances, between 1899 and 1933. There are only two recorded instances of her orchestra music having been performed elsewhere; in March 1887 at Leyton (a movement from Symphony in G minor), and in February 1897 at Queen's Hall in London (Les Tenebres).[2]
At the South Place Concert Series, a weekly chamber music concert series in London, between 1887–1987, 1,121 works were performed and women composers make up for only 13 of those compositions.[2] Swepstone’s Piano Quintet in E minor was performed a total of four times at the concert series.[6] Swepstone’s influence is apparent in that, of all the pieces played at the series and written by women, over half were her compositions.[2]
In total, seven of her chamber music compositions were performed at the series.[2] In addition to Piano Quintet E Minor, played four times, the following works were each performed once: Quintet D Hn & String Quartet, Quintet E-flat Pf and Wind, String Quartet Lyrical Cycle, Piano Trio D minor, Piano Trio G minor, Piano Trio A minor.[2]
Works
Swepstone wrote chamber music, and also songs and choral music. Selected works include:[7]
The Four Ships
Foreshadowings
A Song of Twilight with A.R. Aldrich
Symphony in G minor
Robert Louis Stevenson's Songs for Children Set to Music
Three-Part Song for female voices, with Pianoforte Accompaniment, words by F.R. Haverga
Les Tenebres overture
Honour March
Lament, for Violin and Piano
The Crocuses' Lament, Two-Part Song for female voices
Requiem for Violoncello and Piano
A Song of Twilight with A.R. Aldrich
Robert Louis Stevenson's Songs for Children Set to Music
Three-Part Song for female voices, with Pianoforte Accompaniment, words by F.R. Haverga
The Crocuses' Lament, Two-Part Song for female voices