Analysing the solos of Herbie Hancock and Freddie Hubbard from the 1964 original recording Empyrean Isles. To sound 'authentic' as a jazz musician you need 'jazz language'. Just like when you learn a language you need to speak with an accent and use phrases. To acquire language you should copy phrases and ideas from other jazz musicians. Below is the 1st chorus from Herbie Hancock's solo. You can copy as suggested in the ossia staves (small ones above) and then learn the solo and play along with the recording.