======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '482'
                                          'artist'  'Causa Sui'
                                     'text_people'  ''
                                         'release'  'Causa Sui'
                                           'title'  'Ventura Freeway'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['stoner', 'space rock', 'stoner rock', 'psychedelic rock', 'rock', "
 "'psychedelic']")
                                     'discogstags'  "['psychedelic rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic;set-pl-progspace'
                                             'bpm'  '145.895'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Causa Sui'
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic', 'set-pl-progspace']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Ventura Freeway'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Causa Sui'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['psychedelic rock', 'rock']
'TXXX:lastfmtags'                                   ['stoner',
 'space rock',
 'stoner rock',
 'psychedelic rock',
 'rock',
 'psychedelic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.57 dB'
'TXXX:replaygain_track_peak'                        '0.367544'

========================== row from database ==========================
                                              'id'  1415536
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Causa Sui/Causa Sui/Causa Sui - 01 - Ventura Freeway.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  482
                                           'genre'  rock-cppex-psychedelic;set-pl-progspace
                                        'filesize'  19320200
                                           'mtime'  1620736135
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 01 rock cppex psychedelic;set pl progspace
                                      'tag_artist'  Causa Sui
                                     'tag_release'  Causa Sui
                                       'tag_title'  Ventura Freeway
                                             'bpm'  145.895
                                    'search_title'  'freeway':2 'ventura':1
                                   'search_artist'  'causa':1 'sui':2
                                  'search_release'  'causa':1 'sui':2
                                     'search_rest'  'classicprogpsy':1 'cppex':3 'pl':8 'progspace':9 'psychedelic':4,6 'rock':2 'set':5,7
                                    'search_combo'  'causa':3B,5C 'classicprogpsy':7 'cppex':9 'freeway':2A 'pl':14 'progspace':15 'psychedelic':10,12 'rock':8 'set':11,13 'sui':4B,6C 'ventura':1A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['stoner', 'space rock', 'stoner rock', 'psychedelic rock', 'rock', 'psychedelic']
                                        'tag_date'  2005
                                     'discogstags'  ['psychedelic rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620736134.662285  (2021-05-11 14:28:54)
                             'size'  19320200