Yes it's ESS's milestones

Easy Contender

Easy Champion

Normal Contender

Normal Champion

Hard Contender

Hard Champion

Expert Contender

Expert Champion

Veteran Contender

Veteran Champion

Tuning In

Sharp

Golden Ears

Reference Monitor

Perfect Pitch

Warmed Up

Regular

Committed

A Year of Ears

Ace

Card Sharp

House Always Wins

Century of Aces

Getting the Ear In

Well Practised

Thousand Cuts

Studio Ears

Clean Sweep

Sharpening Up

Hard Won

Serious Ears

Veteran's Ear

Harmonic Counter

Peak Spotter

Notch Finder

Resonance Hunter

Frequency Hawk

Key Master

Metronome

Transient Tracker

Tail Reader

Stereo Surgeon

Chain Reader

Bit Depth Charge

Bitrate Sniffer

Echo Chamber

Filter Whisperer

FX Detective

Name That Tone

Nyquist

Clip Catcher

Mud Wrestler

Balance Keeper

Buried Treasure

Level Head

Dynamics Detective

Full Spectrum

Snap Judgement

Flawless Week

Nerves of Steel

Drill Sergeant

Master of the Hill

Quick Study

Iron Month

Warming Up

Hooked

Fortnight Faithful

Ritualist

Two Months Deep

Devoted

Year of Craft

January

February

March

April

May

June

July

August

September

October

November

December