======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '346'
                                          'artist'  'Propellerheads'
                                     'text_people'  ''
                                         'release'  'Decksandrumsandrockandroll (Us Release)'
                                           'title'  'Velvet Pants'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronica', 'trip hop', 'dance', 'electronic', 'big beat']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '86.9'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=153, count=0)
'TALB' (Album/Movie/Show title)                     'Decksandrumsandrockandroll (Us Release)'
'TBPM' (BPM (beats per minute))                     '86.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Velvet Pants'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Propellerheads'
'TPE2' (Band/orchestra/accompaniment)               'Propellerheads'
'TRCK' (Track number/Position in set)               '2'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MP3GAIN_MINMAX'                               '136,193'
'TXXX:MusicMagic Data'                              'AgEAAH3tkzqQidp6g3Ec4jadOyOBq4OesjyZ81RP8ozuRoABgAGtkbYRuUnuWbaikW+AAd3ygkDt3yuGgAEB2N68DfCwLs5PhwiAAaDblsrCuoJ/IXNDxMzigiGHRrzol/pU3+mp/PGPTYc7vki8XLZy7k3NC4ikgAH0sYtXCmv1d4RD6UrhKBBsp3HanYMqhHY='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'trip hop', 'dance', 'electronic', 'big beat']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.581359'

========================== row from database ==========================
                                              'id'  1361440
                                            'path'  /data/Music/Bulk/00poprockelectronic/Propellerheads/MBZ;#Propellerheads;#Decksandrumsandrockandroll (Us Release);#02;#Velvet Pants.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  346
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  8338023
                                           'mtime'  1621696532
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Propellerheads;#Decksandrumsandrockandroll Release);#02;#Velvet electronic generic or radio bigbeat
                                      'tag_artist'  Propellerheads
                                     'tag_release'  Decksandrumsandrockandroll (Us Release)
                                       'tag_title'  Velvet Pants
                                             'bpm'  86.9
                                    'search_title'  'pants':2 'velvet':1
                                   'search_artist'  'propellerheads':1
                                  'search_release'  'decksandrumsandrockandroll':1 'release':4,5 'us':2,3
                                     'search_rest'  '00poprockelectronic':1 '02':9,12 'bigbeat':18 'decksandrumsandrockandroll':4,7 'electronic':14 'generic':15 'mbz':2,5 'or':16 'propellerheads':3,6 'radio':17 'release':8,11 'velvet':10,13
                                    'search_combo'  '00poprockelectronic':9 '02':17,20 'bigbeat':26 'decksandrumsandrockandroll':4C,12,15 'electronic':22 'generic':23 'mbz':10,13 'or':24 'pants':2A 'propellerheads':3B,11,14 'radio':25 'release':7C,8C,16,19 'us':5C,6C 'velvet':1A,18,21
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', '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-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'trip hop', 'dance', 'electronic', 'big beat']
                                        'tag_date'  1998
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696531.6295316  (2021-05-22 17:15:31)
                             'size'  8338023