======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '147'
                                          'artist'  'Jeff Mills'
                                     'text_people'  ''
                                         'release'  '1990s techno'
                                           'title'  'Shifty Disco 1996  - The Sun'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-GRIT-3', 'q-bass-2', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'Q-SYN-4', 'Q-BUSY-3', 'Q-PLAY-2', 'Q-CHART-2', "
 "'Q-MIXBEAT-4']")
                                      'lastfmtags'  "['techno', 'detroit techno', 'electronic', 'minimal', 'detroit']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '143.1'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000740 00001242 00003089 0000704A 0001ADDE 0001ADDE 00008000 00008000 '
 '000111B5 0000EA60')
'TALB' (Album/Movie/Show title)                     '1990s techno'
'TBPM' (BPM (beats per minute))                     '143.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Shifty Disco 1996  - The Sun'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jeff Mills'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '4'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['techno', 'detroit techno', 'electronic', 'minimal', 'detroit']
'TXXX:q-bass'                                       '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.393603'

========================== row from database ==========================
                                              'id'  1539824
                                            'path'  /data/Music/Bulk/00poprockelectronic/1990_S TECHNO__SOME OF MY VINYLS_/JEFF MILLS_SHIFTY DISCO_1996_ - THE SUN.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  147
                                           'genre'  electronic-th-techno
                                        'filesize'  5884035
                                           'mtime'  1678647710
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1990_S TECHNO__SOME OF MY VINYLS_ JEFF MILLS_SHIFTY DISCO_1996_ THE SUN electronic th
                                      'tag_artist'  Jeff Mills
                                     'tag_release'  1990s techno
                                       'tag_title'  Shifty Disco 1996  - The Sun
                                             'bpm'  143.1
                                    'search_title'  '1996':3 'disco':2 'shifty':1 'sun':5 'the':4
                                   'search_artist'  'jeff':1 'mills':2
                                  'search_release'  '1990s':1 'techno':2
                                     'search_rest'  '00poprockelectronic':1 '1990':2 '1996':13 'disco':12 'electronic':16 'jeff':9 'mills':10 'my':7 'of':6 's':3 'shifty':11 'some':5 'sun':15 'techno':4 'th':17 'the':14 'vinyls':8
                                    'search_combo'  '00poprockelectronic':10 '1990':11 '1990s':8C '1996':3A,22 'disco':2A,21 'electronic':25 'jeff':6B,18 'mills':7B,19 'my':16 'of':15 's':12 'shifty':1A,20 'some':14 'sun':5A,24 'techno':9C,13 'th':26 'the':4A,23 'vinyls':17
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-GRIT-3', 'q-bass-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-SYN-4', 'Q-BUSY-3', 'Q-PLAY-2', 'Q-CHART-2', 'Q-MIXBEAT-4']
                                      'lastfmtags'  ['techno', 'detroit techno', 'electronic', 'minimal', 'detroit']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678647710.1308632  (2023-03-12 20:01:50)
                             'size'  5884035