======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '217'
                                          'artist'  'Urban Tribe'
                                     'text_people'  ''
                                         'release'  'A tribute to Robert Moog'
                                           'title'  'Synthesis'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-4', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['detroit', 'electro', 'techno', 'downtempo', 'detroit techno']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'mi-earlysynth-moog'
                                             'bpm'  '145.5'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'A tribute to Robert Moog'
'TBPM' (BPM (beats per minute))                     '145.5'
'TCON' (Content type, a.k.a. Genre)                 'mi-earlysynth-moog'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Synthesis'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Urban Tribe'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['detroit', 'electro', 'techno', 'downtempo', 'detroit techno']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.07 dB'
'TXXX:replaygain_track_peak'                        '0.549128'
'TXXX:tracknum'                                     '04'

========================== row from database ==========================
                                              'id'  648863
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/A tribute to Robert Moog (Crème Organization, 2006) [192k]/04. Urban Tribe - Synthesis.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  217
                                           'genre'  mi-earlysynth-moog
                                        'filesize'  5214662
                                           'mtime'  1621627625
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm (Crème Organization, 2006) [192k] 04. mi earlysynth moog
                                      'tag_artist'  Urban Tribe
                                     'tag_release'  A tribute to Robert Moog
                                       'tag_title'  Synthesis
                                             'bpm'  145.5
                                    'search_title'  'synthesis':1
                                   'search_artist'  'tribe':2 'urban':1
                                  'search_release'  'a':1 'moog':5 'robert':4 'to':3 'tribute':2
                                     'search_rest'  '04':11,12 '192k':9,10 '2006':7,8 'creme':1,2,3,4 'earlysynth':14 'mi':13 'moog':15 'organization':5,6
                                    'search_combo'  '04':19,20 '192k':17,18 '2006':15,16 'a':4C 'creme':9,10,11,12 'earlysynth':22 'mi':21 'moog':8C,23 'organization':13,14 'robert':7C 'synthesis':1A 'to':6C 'tribe':3B 'tribute':5C 'urban':2B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['detroit', 'electro', 'techno', 'downtempo', 'detroit techno']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621627625.4160483  (2021-05-21 22:07:05)
                             'size'  5214662