Take the D scale for example. Start on the D note at the second fret and move up the scale like this to the next D: If you play this same pattern up two frets (so the E is the first note you play), youâll have an E major scale. The same goes for any other pattern you can spot in these scale maps.
A pacemaker signals the heart to beat when the heartbeat is too slow or irregular. A pulse generator is a small metal case that contains electronic circuitry with a small computer and a battery that regulate the impulses sent to the heart.
A Pacemaker is less intrusive and your heart recovers more quickly, you also don't have to wait for a donor.No need for major surgery if you get a pacemaker.Disadvantage is that the operation may go wrong and pacemakers only last for a while, run on battery power.