Shifting and vibrato can really boost your scales and arpeggios. Here’s how I see it:

1. Adding Emotion

• Vibrato makes your notes feel warm and full of life.
• Think of it like adding just the right amount of spice to your food—too little is boring, but too much can ruin the dish.

2. Smooth Playing

• Shifting helps you move around the fingerboard easily.
• Practicing shifts in your scales helps you change notes smoothly and keeps everything in tune.

3. More Variety

• Using shifts lets you play notes in different octaves during arpeggios.
• This gives you new ways to create music and makes practice more fun!