diff --git a/Userland/Applications/Piano/Track.cpp b/Userland/Applications/Piano/Track.cpp
index a074e89c3d..b9132100de 100644
--- a/Userland/Applications/Piano/Track.cpp
+++ b/Userland/Applications/Piano/Track.cpp
@@ -27,7 +27,7 @@ Track::Track(u32 const& time)
 
 void Track::fill_sample(Sample& sample)
 {
-    m_temporary_transport->time() = m_time;
+    m_temporary_transport->set_time(m_time);
 
     auto playing_notes = LibDSP::RollNotes {};
 
diff --git a/Userland/Libraries/LibDSP/Transport.h b/Userland/Libraries/LibDSP/Transport.h
index 0acd8d725f..23723e27c5 100644
--- a/Userland/Libraries/LibDSP/Transport.h
+++ b/Userland/Libraries/LibDSP/Transport.h
@@ -15,7 +15,6 @@ namespace LibDSP {
 // The DAW-wide timekeeper and synchronizer
 class Transport final : public RefCounted<Transport> {
 public:
-    constexpr u32& time() { return m_time; }
     constexpr u32 time() const { return m_time; }
     constexpr u16 beats_per_minute() const { return m_beats_per_minute; }
     constexpr double current_second() const { return static_cast<double>(m_time) / m_sample_rate; }
@@ -24,6 +23,8 @@ public:
     constexpr double ms_sample_rate() const { return m_sample_rate / 1000.; }
     constexpr double current_measure() const { return m_time / samples_per_measure(); }
 
+    void set_time(u32 time) { m_time = time; }
+
     Transport(u16 beats_per_minute, u8 beats_per_measure, u32 sample_rate)
         : m_beats_per_minute(beats_per_minute)
         , m_beats_per_measure(beats_per_measure)