Found the following hamletworks.org entries referring to line 2237-9

View Commentary Note for 2236-40
2236-7 you would plucke out the hart | of my mistery, you would sound mee 
2237-9 from my lowest | note to <the top of> my compasse, and there is much mu|sique ex- 
2239-40 cellent voyce in this little organ, yet cannot | you make it {speak, s'bloud} 

View Immaterial Textual Note for 2236-40
2236-7 you would plucke out the hart | of my mistery, you would sound mee 
2237-9 from my lowest | note to <the top of> my compasse, and there is much mu | sique ex- 
2239-40 cellent voyce in this little organ, yet cannot | you make it {speak, s'bloud} 

View Material Textual Note for 2236-40
2236-7 you would plucke out the hart | of my mistery, you would sound mee 
2237-9 from my lowest | note to <the top of> my compasse, and there is much mu|sique ex- 
2239-40 cellent voyce in this little organ, yet cannot | you make it {speak, s'bloud}