The call comes in on a Tuesday. The gig is Saturday. Your regular bassist just texted to say she is sick, and you have got a four-hour wedding reception, a setlist you have been rehearsing for three weeks, and a client who paid a deposit six months ago.
This is dep life. And if you gig regularly, it will happen to you — or it already has.
What is a dep, exactly?
A dep (short for deputy) is a musician who steps in to cover a gig when a regular band member cannot make it. The term is common in the UK and Australia; in the US you will often hear sub or substitute instead.
Deps are a normal, professional part of live music. Experienced players have covered hundreds of gigs for bands they had never played with before. The ability to walk in cold, read the room, and deliver is a genuine skill — and one that is widely respected in the industry.
Build your network before you need it
The worst time to find a dep is when you urgently need one. The best time is every other day of the year.
Every gig you play is an opportunity to meet other musicians. Every rehearsal, session, open mic, or industry event is the same. Make a habit of collecting contact details — not just names, but instruments, genres they are comfortable with, and whether they are available for deps.
A simple list on your phone is better than nothing. A proper player directory — like the one inside SessionsNV, where you can store each musician's details and contact them directly when a gig comes up — means you can find the right person faster when you are already under pressure.
The goal is to have at least two or three options for every instrument in your regular lineup. When the call comes in on Tuesday, you want to be making one phone call, not twenty.
Where to find deps you have not met yet
Your existing network will not always cover every situation. Here is where to look when you need someone new.
Other musicians in your scene. Ask around. Do you know a good dep trumpet player travels fast in a music community. Someone always knows someone.
Local music schools and colleges. Final-year students and recent graduates are often excellent deps — well-trained, keen, and available. Contact the head of the relevant department and ask if they can recommend anyone.
Online musician communities. Facebook groups for local musicians and country-specific forums can connect you with players outside your immediate circle.
Session musician directories. In some cities there are directories or agencies specifically for session and dep work. Search for your city or region plus session musician or dep musician.
Union and professional association networks. If you are a member of a musicians union they often have member directories or can help connect you with available players.
What to tell a dep when you reach out
Be specific and be upfront. A dep is agreeing to walk into your gig cold — the more information you give them, the better the gig will go.
Cover these things in your first message or call:
- –The date, time, and venue — including load-in time, not just the performance start
- –The fee — be clear, be fair, pay promptly
- –The genre and style
- –The setlist or charts — send these as early as possible
- –What gear they need to bring
- –Any specific client requirements — dress code, volume restrictions, song requests
A dep who receives a clear, professional brief is a dep who shows up prepared.
Sending a formal gig invitation
Once you have agreed verbally, follow up in writing. It protects both of you and removes any ambiguity about the details.
A message confirming the date, venue, call time, fee, and any important notes is enough. If you are using SessionsNV, you can send a gig invitation directly from the app — it includes all the details, and the dep can accept or decline inside the app, so you get confirmation without chasing.
Paying your deps
Pay promptly. Pay what you agreed. Do not wait to be asked.
Late or disputed payment is one of the most common reasons musicians stop depping for each other. Word travels in the music community. Being known as someone who pays on time and treats deps well is genuinely valuable.
The dep relationship is one of the best things about professional music. Build those relationships before you need them, treat the people you work with well, and you will rarely be scrambling on a Tuesday afternoon again.