Given that there is an extensive definition of poetry, it is hard to draw a distinction between prose and poetry that works in all cases. Most readers now accept that a very prosaic textbook could have elements of poetry in it and that, conversely, some poems are deliberately prosaic. Usually, it is the writer's stated intention that counts but this is often left ambiguous, too. Some musical composers, notably in the late Romantic tradition, made wordless musical poems, known as tone poems, often musical interpretations of famous poems. Lyrics – the words that go with songs – are not often considered to be poems. That said, some lyrics can stand alone without music which gives them a poetry-like status.