======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '192'
                                          'artist'  'David Bowie'
                                     'text_people'  ''
                                         'release'  'Christiane F. (Wir Kinder vom'
                                           'title'  'V-2 Schneider'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', '80s', 'alternative', 'rock', 'glam rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1981'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '124.163'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Christiane F. (Wir Kinder vom'
'TBPM' (BPM (beats per minute))                     '124.163'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '1981'
'TIT2' (Title/songname/content description)         'V-2 Schneider'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'David Bowie'
'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'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.96 dB'
'TXXX:replaygain_track_peak'                        '0.605786'

========================== row from database ==========================
                                              'id'  191457
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/David Bowie/David Bowie - 1981 - Christiane F/MBZ;#David Bowie;#Christiane F. (Wir Kinder vom Bahnhof Zoo);#0000-00-00;#01;#V-2 Schneider.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  192
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  3077651
                                           'mtime'  1623430285
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1981 MBZ;#David Bowie;#Christiane Bahnhof Zoo);#0000 00 00;#01;#V ifs songwriter eos
                                      'tag_artist'  David Bowie
                                     'tag_release'  Christiane F. (Wir Kinder vom
                                       'tag_title'  V-2 Schneider
                                             'bpm'  124.163
                                    'search_title'  '2':2 'schneider':4 'v':1 'v2':3
                                   'search_artist'  'bowie':2 'david':1
                                  'search_release'  'christiane':1 'f':2,3 'kinder':6 'vom':7 'wir':4,5
                                     'search_rest'  '00':18,19,22 '0000':15,17 '00singer':1 '01':20,23 '1981':4 'bahnhof':13 'bowie':9,11 'christiane':10,12 'david':6,8 'eos':3 'ifs':25 'mbz':5,7 'songwriter':2 'v':21,24 'zoo':14,16
                                    'search_combo'  '00':31,32,35 '0000':28,30 '00singer':14 '01':33,36 '1981':17 '2':2A 'bahnhof':26 'bowie':6B,22,24 'christiane':7C,23,25 'david':5B,19,21 'eos':16 'f':8C,9C 'ifs':38 'kinder':12C 'mbz':18,20 'schneider':4A 'songwriter':15 'v':1A,34,37 'v2':3A 'vom':13C 'wir':10C,11C 'zoo':27,29
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
                                        'tag_date'  1981
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1623430284.527139  (2021-06-11 18:51:24)
                             'size'  3077651