Marco Chelo.

Hi, I’m Marco. I build things, and I play the saxophone.

Websites, online stores and apps, built by someone who runs a business.

For small businesses, musicians and nonprofits in New York. I also sort out the parts people struggle with: domains, business email and hosting.

See my work or hear me play
The New York Jazz Workshop website
the school’s website
A screen of the NYJW app listing upcoming concerts and classes
its iPhone app

replaced QuickBooks, Planyo and Streak

I build. Websites, online stores, apps and business systems. Fixed prices, one person to call. see my work → I play. Tenor saxophone. Twenty years in New York’s West African music scene, with DafinaRoots and many others. listen →

Liner notes

3 paid apps replaced ✦ 1 iPhone app on the App Store ✦ 8 sites and systems live ✦ 0 hours a week reconciling the bank ✦ 30 years running companies

Things I have built and keep running.

all projects →
The NYJW app on the App Store, with five screens of the student and teacher views

NYJW app

Schedules, lessons left and bookings on the student’s phone. On the App Store since March 2026.

View on the App Store
The New York Jazz Workshop website

newyorkjazzworkshop.com

Live prices and class availability, pulled from the school’s own system.

The Travel Retreats checkout: a Tuscany retreat paid for online by card, Apple Pay or instalments

Travel Retreats

Guests choose a room, add extra nights and pay online in one visit.

The Midtown Sports Card Show site on a phone, showing the next show date

Midtown Sports Card Show

A one-page mobile site; show dates go into your calendar in one tap.

The DafinaRoots band website

DafinaRoots

Band site with dates, profiles and streaming links: one link to send to any venue.

dafinarootsband.com
The New York Music Institute website

New York Music Institute

A nonprofit that takes registrations and donations online for every program.

newyorkmusicinstitute.org

Services

The set list.

Five things I do well. Pick one, or the whole set.

  1. 1 Websites

    Fast, clear sites you can edit yourself.
  2. 2 Online stores and booking

    Products, packages, tickets, trips or room time, with card payments.
  3. 3 Apps and business systems

    Billing, invoicing, payroll, CRM and a mobile app, all in one place.
  4. 4 Domain, email and hosting people get stuck here

    Lost the domain login? Email landing in spam? I untangle it, set it up right and keep it running.
  5. 5 Tech and AI advice

    The right tools, fewer subscriptions, no surprises.

Prices

A fixed price in a one-page proposal before I start. No hourly surprises.

  • One-page websitefrom [$750]
  • Business website, 5 to 10 pagesfrom [$2,000]
  • Online store or booking sitefrom [$3,500]
  • Custom system or app[$8k to $40k]
  • Domain, DNS and email setupfrom [$250]
  • Hosting and carefrom [$30] a month

Prices in brackets are not confirmed yet.

Marco Chelo with his tenor saxophone
with DafinaRoots

after hours

On the bandstand.

I fell in love with African music in Lagos, at Fela Kuti’s Kalakuta Republic. For twenty years I have played tenor saxophone with West African bands in New York, including DafinaRoots, alongside musicians such as Makane Kouyaté and Yacouba Sissoko.

Listen Upcoming dates Book the band

Aeolus, 27 feet, Bahamas-bound

About me.

Born in Milan, raised in Rome. Before the internet, I built one of Italy’s first electronic travel networks. Then a web agency in New York and Bucharest, sixteen years managing IT projects for New York State, and the New York Jazz Workshop, which I co-founded in 2008 and which runs on a platform I built. When I can, I sail Aeolus, a 27-foot boat I refitted and took to the Bahamas.

read the whole story →

Tell me what is slowing your business down.

Book a free call or just call: 917-340-0270

A free 30-minute call. You describe the problem; I tell you if I can fix it and roughly what it costs.