Leland Sklar (Jackson Browne, James Taylor, Warren Zevon) explained the process; "There was just a magic that used to go on, and it still happens on occasion, like I was saying with this Josh Doyle...
lˈɛlənd sklˈɑːɹ dʒˈæksən bɹˈaʊn, dʒˈeɪmz tˈeɪlɚ, wˈɔːɹən zˈɛvɑːn ɛksplˈeɪnd ðə pɹˈɑːsɛs; "ðɛɹwˌʌz dʒˈʌst ɐ mˈædʒɪk ðæt jˈuːzd tə ɡˌoʊ ˈɔn, ænd ɪt stˈɪl hˈæpənz ˌɔn əkˈeɪʒən, lˈaɪk aɪ wʌz sˈeɪɪŋ wɪð ðɪs dʒˈɑːʃ dˈɔɪl...