======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '195'
                                          'artist'  'CC Catch'
                                     'text_people'  ''
                                         'release'  'Shake your Head 2003'
                                           'title'  'Spring'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'disco', 'pop', 'dance', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '124.929'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Shake your Head 2003'
'TBPM' (BPM (beats per minute))                     '124.929'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Spring'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'CC Catch'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'disco', 'pop', 'dance', 'female vocalists']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.57 dB'
'TXXX:replaygain_track_peak'                        '0.464556'

========================== row from database ==========================
                                              'id'  1358004
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/CC Catch/Shake Your Head/05 Spring.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  195
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  4689391
                                           'mtime'  1620608728
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo Your 05 electronic we disco or italo
                                      'tag_artist'  CC Catch
                                     'tag_release'  Shake your Head 2003
                                       'tag_title'  Spring
                                             'bpm'  124.929
                                    'search_title'  'spring':1
                                   'search_artist'  'catch':2 'cc':1
                                  'search_release'  '2003':4 'head':3 'shake':1 'your':2
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 'disco':3 'electronic':7 'italo':5 'or':9 'waves':2 'we':8 'your':6
                                    'search_combo'  '00disco':11 '00poprockelectronic':8 '2003':7C 'catch':3B 'cc':2B 'disco':10 'electronic':14 'head':6C 'italo':12 'or':16 'shake':4C 'spring':1A 'waves':9 'we':15 'your':5C,13
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-4', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['80s', 'disco', 'pop', 'dance', 'female vocalists']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620608728.094341  (2021-05-10 03:05:28)
                             'size'  4689391