[1]: In most of the stanzas in which the refrain can be discerned in 147 it is clear that it is abbreviated in ways differing slightly from stanza to stanza. The state of 147’s preservation nevertheless makes it impossible to identify with precision the indication of abbreviation in each case. Each instance of abbreviation in the refrains as preserved in 147 is accordingly signalled in the Readings of the present edn by an apostrophe comma enclosed in round brackets, the latter indicating, as elsewhere in the Readings, that the ms. reading is unclear. The relevant stanzas are 7, 8, 13-15, 17, 19-27.