PSA How To Work Songs Out By Ear – Ear Study Webinar Click the links below to watch the PSA ear training webinars. This skill is vital to all guitarists. Enjoy. Introduction To Working Out Songs By Ear (Ear Study) – Part 3 – 13th July 2018 – WebinarIntroduction To Working Out Songs By Ear (Ear Study) – Part 2 – 29th June 2018 – WebinarIntroduction To Working Out Songs By Ear (Ear Study) – Part 1 – 16th June 2018 – Webinar