How Long Does It Take to Get a Riff Up to Speed?

There's no honest single number, but there is an honest formula: your timeline is the gap between your current clean tempo and the target, divided by a few durable BPM per week. A riff you can play cleanly at 100 with a 132 target is a matter of weeks. A riff at 70 aiming for 160 is a project measured in months — and pretending otherwise is how people quit.

Step 1: measure the real gap

Find the fastest tempo where you can play the riff cleanly and relaxed several times in a row. Not your best scramble — your clean max. The distance from that number to the song's tempo is the actual work remaining. Most players skip this step, which is why their estimates are fantasy.

Step 2: apply a realistic rate

On genuinely hard material, durable progress runs a few BPM per week — sometimes a 10 BPM jump in a good week, sometimes three sessions holding the same tempo while it consolidates. Easy material moves faster because the gap is mostly familiarity, not new technique. Be suspicious of anyone promising a fixed BPM-per-day schedule; speed doesn't compound on a calendar.

• 30 BPM gap on comfortable technique: think 3–6 weeks.
• 60+ BPM gap, or technique you've never done at speed: think months.
• The last 10% to full tempo routinely takes as long as the first 90%.

What actually shortens the timeline

• Cut the riff into short fragments and clock each one — the slowest fragment is your bottleneck.
• Practise the hard fragment daily for ten focused minutes instead of weekly for an hour.
• Climb in 5 BPM steps after 4–10 clean reps; forced jumps get taken back.

Why the chart beats the deadline

A deadline you're missing is demoralising; a line that's visibly climbing isn't — even when it climbs slowly. Log the clean max after each session and the question changes from "why isn't it done?" to "it moved 4 BPM this week." That reframe is what keeps a months-long riff alive.

Crank. does the bookkeeping: one fragment per riff section, a target BPM, and a chart that shows the gap closing session by session. Free on the App Store for iPhone.