Top 50 Abbreviations in CW with QSOs

We work through the top 50 abbreviations and prosigns used in amateur radio CW QSOs and demonstrate the use of the abbreviations in a simulated QSO at 3 different speeds, 15 wpm, 20 wpm and 30 wpm. I accidentally encoded the BK with prosign spacing rather than a B then K letter. Apologies for that and good catch by a listener.