Here a transcription of one of my favorite jazz singer: Maria Pia de Vito. The song is Renewal, and was composed by guitarist Ralph Towner for his band Oregon. He’s also playing the guitar on this version, along with John Taylor on piano. Maria’s scat solo is really a “tour de force”, as the harmony is quite complex and most of the time non-functional (no II-V-I) … and as you will see (hear), she nails all the changes perfectly with great melodic ideas and a perfect groove … quite a performance. Her solo starts at 1’35”.