======================== unified (from filesystem) ========================
                                         'bitrate'  '184.087'
                                        'duration'  '49'
                                          'artist'  'Freeform'
                                     'text_people'  ''
                                         'release'  'Blu Tribunl'
                                           'title'  'Blue Tooth Blues'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronica', 'skam', 'warp', 'idm', 'electronic', 'experimental']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-collage'
                                             'bpm'  '144.6'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Blu Tribunl'
'TBPM' (BPM (beats per minute))                     '144.6'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-collage'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Blue Tooth Blues'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Freeform'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'skam', 'warp', 'idm', 'electronic', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.01 dB'
'TXXX:replaygain_track_peak'                        '0.489221'

========================== row from database ==========================
                                              'id'  1368659
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Rip Off Artist - 2004 - Akufen／Freeform／The Rip-Off Artist - Blu TribunL (Inflatabl Labl) [vBr]/06 Freeform – Blue Tooth Blues.mp3
                                         'working'  None
                                         'bitrate'  184
                                    'duration_sec'  49
                                           'genre'  electronic-experimental-collage
                                        'filesize'  1141393
                                           'mtime'  1636920738
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm The Rip Off Artist 2004 Akufen／Freeform／The Rip Off Artist TribunL (Inflatabl Labl) [vBr] 06 – electronic experimental collage
                                      'tag_artist'  Freeform
                                     'tag_release'  Blu Tribunl
                                       'tag_title'  Blue Tooth Blues
                                             'bpm'  144.6
                                    'search_title'  'blue':1 'blues':3 'tooth':2
                                   'search_artist'  'freeform':1
                                  'search_release'  'blu':1 'tribunl':2
                                     'search_rest'  '2004':5 'akufen':6,9 'akufenfreeformthe':12 'artist':4 'br':27,28 'collage':22 'electronic':20 'experimental':21 'freeform':7,10 'inflatabl':14,15 'l':24 'labl':16,17 'off':3 'rip':2 'the':1,8,11 'tribun':23 'tribunl':13 'v':25,26 'vbr':18,19
                                    'search_combo'  '2004':11 'akufen':12,15 'akufenfreeformthe':18 'artist':10 'blu':5C 'blue':1A 'blues':3A 'br':33,34 'collage':28 'electronic':26 'experimental':27 'freeform':4B,13,16 'inflatabl':20,21 'l':30 'labl':22,23 'off':9 'rip':8 'the':7,14,17 'tooth':2A 'tribun':29 'tribunl':6C,19 'v':31,32 'vbr':24,25
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'skam', 'warp', 'idm', 'electronic', 'experimental']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636920738.255187  (2021-11-14 21:12:18)
                             'size'  1141393