Seismology is the only way to investigate the internal structure of
the giant planets, with a lot of scientific implications such as
high pressure physics and huge constraints on the scenario of solar
system formation. As compared to other existing possibilities
(ground based network, spacecraft), seismology of Jupiter will take
a maximum benefit from the peculiarities of the Concordia station as
an astronomical observatory. Indeed, the continuous temporal
coverage for all the winter season, and the quality of the
atmospheric seeing, are crucial parameters for this program. The
jovian seismometer SYMPA, already used for network observations, is
perfectly suitable for Dome C conditions. With the already
existing small telescopes deployed in the frame of site testing
program, seismology of Jupiter will constitute a excellent
intermediate project with high scientific return, before the
installation of large telescopes. In a second step, such an
instrument could be a first light instrument for a 1.5 m class
automatic telescope, which is to be developed as an individual stone
for a large interferometer. With this diameter, the same scientific
program on Saturn could also be achieved.