Event Comment: A Gr
and Serious Opera; the music by 
Sacchini, with additions 
and alterations [by 
Andreozzi and Mazzinghi].  Under the direction of Mazzinghi.  The dresses executed from original drawings of 
Bartolozzi and Tresham, by 
Lupino.  With dances analogous to the Opera.  The Doors to be opened at 6:30.  To begin at 7:30 [same throughout season].  Pit 10s. 6d. Gallery 5s.  There are a number of green boxes which may be taken on application to 
Lee, at the Theatre; the entrance to which, 
and to the Gallery, will be in 
Oxford-street.  Subscriptions will be received by Messrs 
Wright and Co., 
Henrietta-street, 
Covent-garden (only) where tickets are delivering daily; 
and such Ladies as have not compleated their subscriptions to their boxes are intreated to send their names to the office, in order to have the tickets prepared, as no person can be admitted without producing a ticket.  The Nobility 
and Gentry are intreated to give particular orders to their coachmen to set down 
and take up with their horses' heads towards 
Hyde-park.  The Doors in 
Blenheim-mews for chairs only.  By Comm
and of 
His Majesty no person can be admitted behind the scenes during the performance.  "We fear that [the 
Pantheon as converted into a theatre] will gratify only the eye.  It must undergo still more changes before the ear will be satisfied.  Whether it is that the dome is too high 
and disproportioned to the breadth, or that the orchestra is sunk too low beneath the audience we cannot tell, but the sound does not swell 
and spread in equal volume; 
and it is the most inaudible in the best parts of the Theatre: the Pit 
and the first 
and second tier of Boxes hear very indistincly...We found this to be the complaint of every judge of music in the place" (
Morning Chronicle, 18 Feb.).  "The Pantheon has opened, 
and is small, they say, but pretty 
and simple; all the rest ill-conducted, 
and from the singers to the scene-shifters imperfect; the dances long 
and bad, 
and the whole performance so dilatory 
and tedious, that it lasted from eight to half an hour past twelve" (
Walpole [18 Feb. 1791], XIV, 377) [
and see 19 Feb.]