diff --git a/src/envelope.rs b/src/envelope.rs
new file mode 100644
index 0000000..e1d2456
--- /dev/null
+++ b/src/envelope.rs
@@ -0,0 +1,54 @@
+use std::ops::RangeInclusive;
+use eframe::egui;
+use eframe::egui::{Context, Id, Label, Slider, Window};
+use serde::{Deserialize, Serialize};
+use crate::gui::Showable;
+
+#[derive(Copy, Clone, PartialEq, Debug, Deserialize, Serialize)]
+pub struct Envelope {
+    pub attack: f32,
+    pub decay: f32,
+    pub sustain: f32,
+    pub release: f32
+}
+
+impl Default for Envelope {
+    fn default() -> Self {
+        Self {
+            attack: 0.0,
+            decay: 0.0,
+            sustain: 1.0,
+            release: 0.0,
+        }
+    }
+}
+
+impl Showable<(Id, String)> for (&mut Envelope, &mut bool) {
+    fn show(&mut self, ctx: &Context, (id, title): &(Id, String)) {
+        let mut open = true;
+        let window = Window::new(title)
+            .id(*id)
+            .open(&mut open)
+            .resizable([false, false])
+            .scroll([false, false]);
+
+        window.show(ctx, |ui| {
+            egui::Grid::new(id).show(ui, |ui| {
+                ui.add(Label::new("Attack"));
+                ui.add(Slider::new(&mut self.0.attack, RangeInclusive::new(0.0, 1.0)));
+                ui.end_row();
+                ui.add(Label::new("Decay"));
+                ui.add(Slider::new(&mut self.0.decay, RangeInclusive::new(0.0, 1.0)));
+                ui.end_row();
+                ui.add(Label::new("Sustain"));
+                ui.add(Slider::new(&mut self.0.sustain, RangeInclusive::new(0.0, 1.0)));
+                ui.end_row();
+                ui.add(Label::new("Release"));
+                ui.add(Slider::new(&mut self.0.release, RangeInclusive::new(0.0, 1.0)));
+                ui.end_row();
+            });
+        });
+
+        *self.1 = open;
+    }
+}
\ No newline at end of file
diff --git a/src/grid.rs b/src/grid.rs
index a80adf5..9dd3339 100644
--- a/src/grid.rs
+++ b/src/grid.rs
@@ -1,6 +1,7 @@
 use std::ops::RangeInclusive;
 use eframe::egui;
 use eframe::egui::{Color32, Context, Id, PointerButton, Pos2, Rangef, Sense, Ui, Vec2};
+use crate::envelope::Envelope;
 use crate::gui::Showable;
 use crate::noise::NoteType;
 use crate::scale::Scale;
@@ -37,7 +38,9 @@ pub struct Grid {
     pub notes: Vec<bool>,
     pub id: Id,
     pub name: String,
-    pub open: bool
+    pub open: bool,
+    pub envelope: Envelope,
+    pub envelope_open: bool
 }
 
 impl Grid {
@@ -50,6 +53,8 @@ impl Grid {
             scale: Scale::CMajor,
             notes: vec![false; (LOOP_LENGTH * LOOP_LENGTH) as usize],
             name: format!("{} Track", note_type.name()),
+            envelope: Envelope::default(),
+            envelope_open: false,
             id
         }
     }
@@ -129,8 +134,11 @@ impl Showable<f32> for Grid {
                     if ui.button(Scale::Pentatonic.label_text(self.scale)).clicked() {
                         self.scale = Scale::Pentatonic
                     }
+                });
 
-                })
+                if ui.button("Envelope...").clicked() {
+                    self.envelope_open = !self.envelope_open;
+                }
             });
 
             egui::MenuBar::new().ui(ui, |ui| {
@@ -147,6 +155,13 @@ impl Showable<f32> for Grid {
             });
         });
 
+        if self.envelope_open {
+            let mut eopen = true;
+            let (id, title) = (format!("{} envelope", self.id.value()).into(), format!("{} Envelope", self.name));
+            (&mut self.envelope, &mut eopen).show(ctx, &(id, title));
+            self.envelope_open = eopen;
+        }
+
         self.open = open;
     }
 }
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 479d6c2..489b19d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,6 +5,7 @@ mod noise;
 mod scale;
 mod saveload;
 mod dialog;
+mod envelope;
 
 use std::time::Duration;
 use eframe::{App, Frame};
diff --git a/src/saveload.rs b/src/saveload.rs
index ca03d7a..28f5462 100644
--- a/src/saveload.rs
+++ b/src/saveload.rs
@@ -1,5 +1,6 @@
 use eframe::egui::Id;
 use serde::{Deserialize, Serialize};
+use crate::envelope::Envelope;
 use crate::grid::Grid;
 use crate::noise::NoteType;
 use crate::scale::Scale;
@@ -36,7 +37,8 @@ struct PersistedGrid {
     length: u64,
     scale: Scale,
     notes: String,
-    name: String
+    name: String,
+    envelope: Envelope,
 }
 
 impl From<&Grid> for PersistedGrid {
@@ -48,6 +50,7 @@ impl From<&Grid> for PersistedGrid {
             length: value.length,
             scale: value.scale,
             name: value.name.clone(),
+            envelope: value.envelope,
             notes
         }
     }
@@ -62,7 +65,9 @@ impl PersistedGrid {
             length: self.length,
             scale: self.scale,
             name: self.name,
+            envelope: self.envelope,
             open: true,
+            envelope_open: false,
             notes,
             id
         }